20112102110020 has 24 divisors (see below), whose sum is σ = 43597847155968. Its totient is φ = 7785329848800.

The previous prime is 20112102109993. The next prime is 20112102110041. The reversal of 20112102110020 is 2001120121102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16219436566 + ... + 16219437805.

It is an arithmetic number, because the mean of its divisors is an integer number (1816576964832).

Almost surely, 2^{20112102110020} is an apocalyptic number.

20112102110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112102110020 is an abundant number, since it is smaller than the sum of its proper divisors (23485745045948).

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

20112102110020 is a wasteful number, since it uses less digits than its factorization.

20112102110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32438874411 (or 32438874409 counting only the distinct ones).

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

Adding to 20112102110020 its reverse (2001120121102), we get a palindrome (22113222231122).

The spelling of 20112102110020 in words is "twenty trillion, one hundred twelve billion, one hundred two million, one hundred ten thousand, twenty".