120121102000000 has 224 divisors, whose sum is σ = 306082503187560. Its totient is φ = 46931001600000.

The previous prime is 120121101999971. The next prime is 120121102000057. The reversal of 120121102000000 is 201121021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 85301622 + ... + 86698378.

Almost surely, 2^{120121102000000} is an apocalyptic number.

120121102000000 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 120121102000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153041251593780).

120121102000000 is an abundant number, since it is smaller than the sum of its proper divisors (185961401187560).

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

120121102000000 is an frugal number, since it uses more digits than its factorization.

120121102000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396844 (or 1396807 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120121102000000 its reverse (201121021), we get a palindrome (120121303121021).

The spelling of 120121102000000 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred two million", and thus it is an aban number.