12101020120000 has 140 divisors (see below), whose sum is σ = 34293254583280. Its totient is φ = 4148921088000.

The previous prime is 12101020119989. The next prime is 12101020120019. The reversal of 12101020120000 is 2102010121.

It is a tau number, because it is divible by the number of its divisors (140).

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 19 ways as a sum of consecutive naturals, for example, 21328965 + ... + 21888964.

It is an arithmetic number, because the mean of its divisors is an integer number (244951818452).

Almost surely, 2^{12101020120000} is an apocalyptic number.

12101020120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101020120000 is an abundant number, since it is smaller than the sum of its proper divisors (22192234463280).

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

12101020120000 is an frugal number, since it uses more digits than its factorization.

12101020120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43217968 (or 43217943 counting only the distinct ones).

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

Adding to 12101020120000 its reverse (2102010121), we get a palindrome (12103122130121).

The spelling of 12101020120000 in words is "twelve trillion, one hundred one billion, twenty million, one hundred twenty thousand".