121002212102120 has 16 divisors (see below), whose sum is σ = 272254977229860. Its totient is φ = 48400884840832.

The previous prime is 121002212102117. The next prime is 121002212102147. The reversal of 121002212102120 is 21201212200121.

It can be written as a sum of positive squares in 2 ways, for example, as 112062506777764 + 8939705324356 = 10585958^2 + 2989934^2 .

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, 1512527651237 + ... + 1512527651316.

Almost surely, 2^{121002212102120} is an apocalyptic number.

121002212102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002212102120 is an abundant number, since it is smaller than the sum of its proper divisors (151252765127740).

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

121002212102120 is a wasteful number, since it uses less digits than its factorization.

121002212102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025055302564 (or 3025055302560 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121002212102120 its reverse (21201212200121), we get a palindrome (142203424302241).

The spelling of 121002212102120 in words is "one hundred twenty-one trillion, two billion, two hundred twelve million, one hundred two thousand, one hundred twenty".