111121014402 has 32 divisors (see below), whose sum is σ = 247137644160. Its totient is φ = 37010029680.

The previous prime is 111121014397. The next prime is 111121014413. The reversal of 111121014402 is 204410121111.

111121014402 is a `hidden beast` number, since 1 + 1 + 11 + 210 + 1 + 440 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 775249 + ... + 907332.

It is an arithmetic number, because the mean of its divisors is an integer number (7723051380).

Almost surely, 2^111121014402 is an apocalyptic number.

111121014402 is an abundant number, since it is smaller than the sum of its proper divisors (136016629758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111121014402 is a wasteful number, since it uses less digits than its factorization.

111121014402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683815 (or 1683809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111121014402 its reverse (204410121111), we get a palindrome (315531135513).

The spelling of 111121014402 in words is "one hundred eleven billion, one hundred twenty-one million, fourteen thousand, four hundred two".