20102012 has 24 divisors (see below), whose sum is σ = 41502720. Its totient is φ = 8336880.

The previous prime is 20102009. The next prime is 20102029. The reversal of 20102012 is 21020102.

It is a congruent number.

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, 10712 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (1729280).

Almost surely, 2^20102012 is an apocalyptic number.

It is an amenable number.

20102012 is an abundant number, since it is smaller than the sum of its proper divisors (21400708).

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

20102012 is a wasteful number, since it uses less digits than its factorization.

20102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23201 (or 23199 counting only the distinct ones).

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

The square root of 20102012 is about 4483.5267368446. The cubic root of 20102012 is about 271.9024845073.

Adding to 20102012 its reverse (21020102), we get a palindrome (41122114).

The spelling of 20102012 in words is "twenty million, one hundred two thousand, twelve".