111121020122 has 16 divisors (see below), whose sum is σ = 191947326912. Its totient is φ = 47259756960.

The previous prime is 111121020097. The next prime is 111121020181. The reversal of 111121020122 is 221020121111.

It is a super-2 number, since 2×111121020122² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 111121020097 and 111121020106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30292883 + ... + 30296550.

It is an arithmetic number, because the mean of its divisors is an integer number (11996707932).

Almost surely, 2^111121020122 is an apocalyptic number.

111121020122 is a deficient number, since it is larger than the sum of its proper divisors (80826306790).

111121020122 is a wasteful number, since it uses less digits than its factorization.

111121020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60589573.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111121020122 its reverse (221020121111), we get a palindrome (332141141233).

The spelling of 111121020122 in words is "one hundred eleven billion, one hundred twenty-one million, twenty thousand, one hundred twenty-two".