20120002120000 has 140 divisors (see below), whose sum is σ = 52516913833120. Its totient is φ = 7624421568000.

The previous prime is 20120002119953. The next prime is 20120002120027. The reversal of 20120002120000 is 2120002102.

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, 12476844 + ... + 13996843.

Almost surely, 2^{20120002120000} is an apocalyptic number.

20120002120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120002120000 is an abundant number, since it is smaller than the sum of its proper divisors (32396911713120).

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

20120002120000 is an equidigital number, since it uses as much as digits as its factorization.

20120002120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473738 (or 26473713 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20120002120000 its reverse (2120002102), we get a palindrome (20122122122102).

The spelling of 20120002120000 in words is "twenty trillion, one hundred twenty billion, two million, one hundred twenty thousand".