20012002110 has 48 divisors (see below), whose sum is σ = 52038670320. Its totient is φ = 5335768320.

The previous prime is 20012002091. The next prime is 20012002147. The reversal of 20012002110 is 1120021002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20012002092 and 20012002101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 915205 + ... + 936815.

It is an arithmetic number, because the mean of its divisors is an integer number (1084138965).

Almost surely, 2^20012002110 is an apocalyptic number.

20012002110 is an abundant number, since it is smaller than the sum of its proper divisors (32026668210).

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

20012002110 is a wasteful number, since it uses less digits than its factorization.

20012002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31913 (or 31910 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20012002110 its reverse (1120021002), we get a palindrome (21132023112).

The spelling of 20012002110 in words is "twenty billion, twelve million, two thousand, one hundred ten".