121111021210112 has 40 divisors (see below), whose sum is σ = 242125133101236. Its totient is φ = 60520567570432.

The previous prime is 121111021210103. The next prime is 121111021210133. The reversal of 121111021210112 is 211012120111121.

It can be written as a sum of positive squares in 2 ways, for example, as 117485134971136 + 3625886238976 = 10839056^2 + 1904176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67359953 + ... + 69134544.

Almost surely, 2^{121111021210112} is an apocalyptic number.

It is an amenable number.

121111021210112 is a deficient number, since it is larger than the sum of its proper divisors (121014111891124).

121111021210112 is an equidigital number, since it uses as much as digits as its factorization.

121111021210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136496248 (or 136496232 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121111021210112 its reverse (211012120111121), we get a palindrome (332123141321233).

The spelling of 121111021210112 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-one million, two hundred ten thousand, one hundred twelve".