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220201220102020 = 225101129184438811
BaseRepresentation
bin110010000100010110010111…
…100000001101011110000100
31001212200000211122012212001021
4302010112113200031132010
5212330234044321231040
62100155013300440524
764245004340104243
oct6204262740153604
91055600748185037
10220201220102020
11641878a4128263
122084457b0a9144
1395b3b695a3c31
143c53b2000695a
151a6ce1455624a
hexc8459780d784

220201220102020 has 48 divisors (see below), whose sum is σ = 467362744825536. Its totient is φ = 87140851920000.

The previous prime is 220201220101979. The next prime is 220201220102029. The reversal of 220201220102020 is 20201022102022.

It is a super-3 number, since 3×2202012201020203 (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220201220101985 and 220201220102003.

It is not an unprimeable number, because it can be changed into a prime (220201220102029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39611586 + ... + 44827225.

It is an arithmetic number, because the mean of its divisors is an integer number (9736723850532).

Almost surely, 2220201220102020 is an apocalyptic number.

220201220102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220201220102020 is an abundant number, since it is smaller than the sum of its proper divisors (247161524723516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220201220102020 is a wasteful number, since it uses less digits than its factorization.

220201220102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84440212 (or 84440210 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220201220102020 its reverse (20201022102022), we get a palindrome (240402242204042).

The spelling of 220201220102020 in words is "two hundred twenty trillion, two hundred one billion, two hundred twenty million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 1291 2020 2582 5164 6455 12910 25820 130391 260782 521564 651955 1303910 2607820 84438811 168877622 337755244 422194055 844388110 1688776220 8528319911 17056639822 34113279644 42641599555 85283199110 109010505001 170566398220 218021010002 436042020004 545052525005 1090105050010 2180210100020 11010061005101 22020122010202 44040244020404 55050305025505 110100610051010 220201220102020