100120012021120 has 128 divisors (see below), whose sum is σ = 294583881695040. Its totient is φ = 31686333456384.

The previous prime is 100120012021063. The next prime is 100120012021121. The reversal of 100120012021120 is 21120210021001.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 100120012021120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120012021121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859488567 + ... + 859605046.

Almost surely, 2^{100120012021120} is an apocalyptic number.

100120012021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120012021120 is an abundant number, since it is smaller than the sum of its proper divisors (194463869673920).

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

100120012021120 is a wasteful number, since it uses less digits than its factorization.

100120012021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719093652 (or 1719093640 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100120012021120 its reverse (21120210021001), we get a palindrome (121240222042121).

The spelling of 100120012021120 in words is "one hundred trillion, one hundred twenty billion, twelve million, twenty-one thousand, one hundred twenty".