113121002222001 has 64 divisors (see below), whose sum is σ = 173730185164800. Its totient is φ = 72700482512448.

The previous prime is 113121002221963. The next prime is 113121002222009. The reversal of 113121002222001 is 100222200121311.

113121002222001 is a `hidden beast` number, since 1 + 1 + 31 + 210 + 0 + 222 + 200 + 1 = 666.

It is not a de Polignac number, because 113121002222001 - 2⁶ = 113121002221937 is a prime.

It is a super-2 number, since 2×113121002222001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113121002222009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31724500 + ... + 35109626.

It is an arithmetic number, because the mean of its divisors is an integer number (2714534143200).

Almost surely, 2^{113121002222001} is an apocalyptic number.

It is an amenable number.

113121002222001 is a deficient number, since it is larger than the sum of its proper divisors (60609182942799).

113121002222001 is a wasteful number, since it uses less digits than its factorization.

113121002222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385555 (or 3385549 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 113121002222001 its reverse (100222200121311), we get a palindrome (213343202343312).

The spelling of 113121002222001 in words is "one hundred thirteen trillion, one hundred twenty-one billion, two million, two hundred twenty-two thousand, one".