121001010212120 has 32 divisors (see below), whose sum is σ = 272254950958320. Its totient is φ = 48399927999360.

The previous prime is 121001010212099. The next prime is 121001010212123. The reversal of 121001010212120 is 21212010100121.

It is a junction number, because it is equal to n+sod(n) for n = 121001010212095 and 121001010212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001010212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10746146 + ... + 18907185.

Almost surely, 2^{121001010212120} is an apocalyptic number.

121001010212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001010212120 is an abundant number, since it is smaller than the sum of its proper divisors (151253940746200).

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

121001010212120 is a wasteful number, since it uses less digits than its factorization.

121001010212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29755355 (or 29755351 counting only the distinct ones).

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

Adding to 121001010212120 its reverse (21212010100121), we get a palindrome (142213020312241).

The spelling of 121001010212120 in words is "one hundred twenty-one trillion, one billion, ten million, two hundred twelve thousand, one hundred twenty".