20112120102000 has 160 divisors (see below), whose sum is σ = 65483471985984. Its totient is φ = 5310130560000.

The previous prime is 20112120101987. The next prime is 20112120102007. The reversal of 20112120102000 is 20102121102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112120102007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15988159 + ... + 17200158.

Almost surely, 2^{20112120102000} is an apocalyptic number.

20112120102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112120102000 is an abundant number, since it is smaller than the sum of its proper divisors (45371351883984).

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

20112120102000 is a wasteful number, since it uses less digits than its factorization.

20112120102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33188444 (or 33188428 counting only the distinct ones).

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

Adding to 20112120102000 its reverse (20102121102), we get a palindrome (20132222223102).

The spelling of 20112120102000 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, one hundred two thousand".