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20102211220201 = 1117234673845901
BaseRepresentation
bin1001001001000011010010…
…01010001011001011101001
32122011202022122220110202221
410210201221022023023221
510113323312033021301
6110430454531154041
74143223351040335
oct444415112131351
978152278813687
1020102211220201
116450333196650
122307b39a45921
13b2a826c52ba6
144d6d48c3a7c5
1524cd882a6da1
hex12486928b2e9

20102211220201 has 16 divisors (see below), whose sum is σ = 24229217155968. Its totient is φ = 16451937568000.

The previous prime is 20102211220177. The next prime is 20102211220219. The reversal of 20102211220201 is 10202211220102.

It is a happy number.

It is not a de Polignac number, because 20102211220201 - 219 = 20102210695913 is a prime.

It is a super-3 number, since 3×201022112202013 (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20102211220271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336918650 + ... + 2336927251.

It is an arithmetic number, because the mean of its divisors is an integer number (1514326072248).

Almost surely, 220102211220201 is an apocalyptic number.

It is an amenable number.

20102211220201 is a deficient number, since it is larger than the sum of its proper divisors (4127005935767).

20102211220201 is a wasteful number, since it uses less digits than its factorization.

20102211220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673845952.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102211220201 its reverse (10202211220102), we get a palindrome (30304422440303).

Subtracting from 20102211220201 its reverse (10202211220102), we obtain a palindrome (9900000000099).

The spelling of 20102211220201 in words is "twenty trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand, two hundred one".

Divisors: 1 11 17 23 187 253 391 4301 4673845901 51412304911 79455380317 107498455723 874009183487 1182483012953 1827473747291 20102211220201