111201010011021 has 16 divisors (see below), whose sum is σ = 170395801459200. Its totient is φ = 63188443036848.

The previous prime is 111201010010971. The next prime is 111201010011053. The reversal of 111201010011021 is 120110010102111.

It is not a de Polignac number, because 111201010011021 - 2²⁵ = 111200976456589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111201010010988 and 111201010011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201010011121) 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, 14791298451 + ... + 14791305968.

It is an arithmetic number, because the mean of its divisors is an integer number (10649737591200).

Almost surely, 2^{111201010011021} is an apocalyptic number.

It is an amenable number.

111201010011021 is a deficient number, since it is larger than the sum of its proper divisors (59194791448179).

111201010011021 is a wasteful number, since it uses less digits than its factorization.

111201010011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29582604608.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111201010011021 its reverse (120110010102111), we get a palindrome (231311020113132).

The spelling of 111201010011021 in words is "one hundred eleven trillion, two hundred one billion, ten million, eleven thousand, twenty-one".