111330002121 has 48 divisors (see below), whose sum is σ = 167535194112. Its totient is φ = 65656094400.

The previous prime is 111330002093. The next prime is 111330002167. The reversal of 111330002121 is 121200033111.

It is a happy number.

It is not a de Polignac number, because 111330002121 - 2⁵ = 111330002089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111330002121.

It is not an unprimeable number, because it can be changed into a prime (111330002321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1584466 + ... + 1653236.

It is an arithmetic number, because the mean of its divisors is an integer number (3490316544).

Almost surely, 2^111330002121 is an apocalyptic number.

It is an amenable number.

111330002121 is a deficient number, since it is larger than the sum of its proper divisors (56205191991).

111330002121 is a wasteful number, since it uses less digits than its factorization.

111330002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68934 (or 68921 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111330002121 its reverse (121200033111), we get a palindrome (232530035232).

The spelling of 111330002121 in words is "one hundred eleven billion, three hundred thirty million, two thousand, one hundred twenty-one".