121201200102000 has 160 divisors (see below), whose sum is σ = 391502684349504. Its totient is φ = 32258284032000.

The previous prime is 121201200101983. The next prime is 121201200102007. The reversal of 121201200102000 is 201002102121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201200102007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16259989 + ... + 22511988.

Almost surely, 2^{121201200102000} is an apocalyptic number.

121201200102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201200102000 is an abundant number, since it is smaller than the sum of its proper divisors (270301484247504).

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

121201200102000 is a wasteful number, since it uses less digits than its factorization.

121201200102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38772524 (or 38772508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121201200102000 its reverse (201002102121), we get a palindrome (121402202204121).

The spelling of 121201200102000 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred million, one hundred two thousand".