121211002112120 has 64 divisors (see below), whose sum is σ = 272784396276000. Its totient is φ = 48473799362560.

The previous prime is 121211002112059. The next prime is 121211002112171. The reversal of 121211002112120 is 21211200112121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6413610431 + ... + 6413629329.

Almost surely, 2^{121211002112120} is an apocalyptic number.

121211002112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211002112120 is an abundant number, since it is smaller than the sum of its proper divisors (151573394163880).

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

121211002112120 is a wasteful number, since it uses less digits than its factorization.

121211002112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45488 (or 45484 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121211002112120 its reverse (21211200112121), we get a palindrome (142422202224241).

The spelling of 121211002112120 in words is "one hundred twenty-one trillion, two hundred eleven billion, two million, one hundred twelve thousand, one hundred twenty".