20102110210 has 64 divisors (see below), whose sum is σ = 44624160000. Its totient is φ = 6349093632.

The previous prime is 20102110187. The next prime is 20102110277. The reversal of 20102110210 is 1201120102.

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, 431956 + ... + 476224.

It is an arithmetic number, because the mean of its divisors is an integer number (697252500).

Almost surely, 2^20102110210 is an apocalyptic number.

20102110210 is an abundant number, since it is smaller than the sum of its proper divisors (24522049790).

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

20102110210 is a wasteful number, since it uses less digits than its factorization.

20102110210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44795.

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

Adding to 20102110210 its reverse (1201120102), we get a palindrome (21303230312).

The spelling of 20102110210 in words is "twenty billion, one hundred two million, one hundred ten thousand, two hundred ten".