20101212010 has 64 divisors (see below), whose sum is σ = 39735360000. Its totient is φ = 7260840000.

The previous prime is 20101211971. The next prime is 20101212023. The reversal of 20101212010 is 1021210102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13776661 + ... + 13778119.

It is an arithmetic number, because the mean of its divisors is an integer number (620865000).

Almost surely, 2^20101212010 is an apocalyptic number.

20101212010 is a deficient number, since it is larger than the sum of its proper divisors (19634147990).

20101212010 is a wasteful number, since it uses less digits than its factorization.

20101212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20101212010 its reverse (1021210102), we get a palindrome (21122422112).

The spelling of 20101212010 in words is "twenty billion, one hundred one million, two hundred twelve thousand, ten".