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20020002112220 = 22511543716737173
BaseRepresentation
bin1001000110101010001010…
…00111010100001011011100
32121212220010100222002022212
410203111011013110023130
510111001431020042340
6110325021220455552
74134253213123565
oct443250507241334
977786110862285
1020020002112220
1164194872a9aa0
1222b401624a5b8
13b22b5524abb6
144d2d8a93316c
1524ab75dbca65
hex1235451d42dc

20020002112220 has 48 divisors (see below), whose sum is σ = 45872443114848. Its totient is φ = 7278661359360.

The previous prime is 20020002112211. The next prime is 20020002112249. The reversal of 20020002112220 is 2221120002002.

It is a super-2 number, since 2×200200021122202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20020002112195 and 20020002112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7172447 + ... + 9564726.

It is an arithmetic number, because the mean of its divisors is an integer number (955675898226).

Almost surely, 220020002112220 is an apocalyptic number.

20020002112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020002112220 is an abundant number, since it is smaller than the sum of its proper divisors (25852441002628).

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

20020002112220 is a wasteful number, since it uses less digits than its factorization.

20020002112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16742630 (or 16742628 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020002112220 its reverse (2221120002002), we get a palindrome (22241122114222).

The spelling of 20020002112220 in words is "twenty trillion, twenty billion, two million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5437 10874 21748 27185 54370 59807 108740 119614 239228 299035 598070 1196140 16737173 33474346 66948692 83685865 167371730 184108903 334743460 368217806 736435612 920544515 1841089030 3682178060 91000009601 182000019202 364000038404 455000048005 910000096010 1001000105611 1820000192020 2002000211222 4004000422444 5005000528055 10010001056110 20020002112220