121001202102000 has 320 divisors, whose sum is σ = 425601677749248. Its totient is φ = 29331594880000.

The previous prime is 121001202101999. The next prime is 121001202102007. The reversal of 121001202102000 is 201202100121.

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 (121001202102007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1097590882 + ... + 1097701118.

Almost surely, 2^{121001202102000} is an apocalyptic number.

121001202102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121001202102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212800838874624).

121001202102000 is an abundant number, since it is smaller than the sum of its proper divisors (304600475647248).

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

121001202102000 is a wasteful number, since it uses less digits than its factorization.

121001202102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126905 (or 126889 counting only the distinct ones).

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

Adding to 121001202102000 its reverse (201202100121), we get a palindrome (121202404202121).

The spelling of 121001202102000 in words is "one hundred twenty-one trillion, one billion, two hundred two million, one hundred two thousand".