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21111100112201 = 1159131248310379
BaseRepresentation
bin1001100110011010011111…
…00111110111110101001001
32202202012102212100101202012
410303031033213313311021
510231341013112042301
6112522145553345305
74306140512112401
oct463151747676511
982665385311665
1021111100112201
1167aa192714680
12244b580868235
13ba19ca969228
1452dad5a15801
1526923509debb
hex13334f9f7d49

21111100112201 has 16 divisors (see below), whose sum is σ = 23599418515200. Its totient is φ = 18722602501200.

The previous prime is 21111100112191. The next prime is 21111100112203. The reversal of 21111100112201 is 10221100111112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-21111100112201 is a prime.

It is a super-3 number, since 3×211111001122013 (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21111100112203) 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, 124070171 + ... + 124240208.

It is an arithmetic number, because the mean of its divisors is an integer number (1474963657200).

Almost surely, 221111100112201 is an apocalyptic number.

It is an amenable number.

21111100112201 is a deficient number, since it is larger than the sum of its proper divisors (2488318402999).

21111100112201 is a wasteful number, since it uses less digits than its factorization.

21111100112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248310580.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21111100112201 its reverse (10221100111112), we get a palindrome (31332200223313).

The spelling of 21111100112201 in words is "twenty-one trillion, one hundred eleven billion, one hundred million, one hundred twelve thousand, two hundred one".

Divisors: 1 11 59 131 649 1441 7729 85019 248310379 2731414169 14650312361 32528659649 161153435971 357815256139 1919190919291 21111100112201