120121010002000 has 80 divisors (see below), whose sum is σ = 331945831107072. Its totient is φ = 41184346281600.

The previous prime is 120121010001989. The next prime is 120121010002001. The reversal of 120121010002000 is 200010121021.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121010002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4290022072 + ... + 4290050071.

Almost surely, 2^{120121010002000} is an apocalyptic number.

120121010002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121010002000 is an abundant number, since it is smaller than the sum of its proper divisors (211824821105072).

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

120121010002000 is an equidigital number, since it uses as much as digits as its factorization.

120121010002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580072173 (or 8580072157 counting only the distinct ones).

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

Adding to 120121010002000 its reverse (200010121021), we get a palindrome (120321020123021).

The spelling of 120121010002000 in words is "one hundred twenty trillion, one hundred twenty-one billion, ten million, two thousand".