120121000020120 has 64 divisors (see below), whose sum is σ = 393123272797440. Its totient is φ = 29120242428800.

The previous prime is 120121000020113. The next prime is 120121000020127. The reversal of 120121000020120 is 21020000121021.

It is an interprime number because it is at equal distance from previous prime (120121000020113) and next prime (120121000020127).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120121000020096 and 120121000020105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121000020127) 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, 45500377476 + ... + 45500380115.

It is an arithmetic number, because the mean of its divisors is an integer number (6142551137460).

Almost surely, 2^{120121000020120} is an apocalyptic number.

120121000020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121000020120 is an abundant number, since it is smaller than the sum of its proper divisors (273002272777320).

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

120121000020120 is a wasteful number, since it uses less digits than its factorization.

120121000020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91000757616 (or 91000757612 counting only the distinct ones).

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

Adding to 120121000020120 its reverse (21020000121021), we get a palindrome (141141000141141).

The spelling of 120121000020120 in words is "one hundred twenty trillion, one hundred twenty-one billion, twenty thousand, one hundred twenty".