20102211010 has 32 divisors (see below), whose sum is σ = 42779093760. Its totient is φ = 6654524352.

The previous prime is 20102211001. The next prime is 20102211013. The reversal of 20102211010 is 1011220102.

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

It is not an unprimeable number, because it can be changed into a prime (20102211013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4949254 + ... + 4953313.

It is an arithmetic number, because the mean of its divisors is an integer number (1336846680).

Almost surely, 2^20102211010 is an apocalyptic number.

20102211010 is an abundant number, since it is smaller than the sum of its proper divisors (22676882750).

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

20102211010 is a wasteful number, since it uses less digits than its factorization.

20102211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902610.

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

Adding to 20102211010 its reverse (1011220102), we get a palindrome (21113431112).

The spelling of 20102211010 in words is "twenty billion, one hundred two million, two hundred eleven thousand, ten".