111202102002121 has 16 divisors (see below), whose sum is σ = 120924071956800. Its totient is φ = 101651146407360.

The previous prime is 111202102002091. The next prime is 111202102002181. The reversal of 111202102002121 is 121200201202111.

It is a cyclic number.

It is not a de Polignac number, because 111202102002121 - 2¹⁹ = 111202101477833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111202102002095 and 111202102002104.

It is not an unprimeable number, because it can be changed into a prime (111202102002181) 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, 86080075 + ... + 87362368.

It is an arithmetic number, because the mean of its divisors is an integer number (7557754497300).

Almost surely, 2^{111202102002121} is an apocalyptic number.

It is an amenable number.

111202102002121 is a deficient number, since it is larger than the sum of its proper divisors (9721969954679).

111202102002121 is a wasteful number, since it uses less digits than its factorization.

111202102002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173442936.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111202102002121 its reverse (121200201202111), we get a palindrome (232402303204232).

The spelling of 111202102002121 in words is "one hundred eleven trillion, two hundred two billion, one hundred two million, two thousand, one hundred twenty-one".