21202000101010 has 16 divisors (see below), whose sum is σ = 40408517839896. Its totient is φ = 7981929449728.

The previous prime is 21202000101001. The next prime is 21202000101053. The reversal of 21202000101010 is 1010100020212.

It can be written as a sum of positive squares in 4 ways, for example, as 17307538614289 + 3894461486721 = 4160233^2 + 1973439^2 .

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 7 ways as a sum of consecutive naturals, for example, 62358823657 + ... + 62358823996.

Almost surely, 2^{21202000101010} is an apocalyptic number.

21202000101010 is a deficient number, since it is larger than the sum of its proper divisors (19206517738886).

21202000101010 is a wasteful number, since it uses less digits than its factorization.

21202000101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124717647677.

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

Adding to 21202000101010 its reverse (1010100020212), we get a palindrome (22212100121222).

The spelling of 21202000101010 in words is "twenty-one trillion, two hundred two billion, one hundred one thousand, ten".