21022131010 has 16 divisors (see below), whose sum is σ = 37990596672. Its totient is φ = 8375350000.

The previous prime is 21022130957. The next prime is 21022131017. The reversal of 21022131010 is 1013122012.

It is not an unprimeable number, because it can be changed into a prime (21022131017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4185166 + ... + 4190185.

It is an arithmetic number, because the mean of its divisors is an integer number (2374412292).

Almost surely, 2^21022131010 is an apocalyptic number.

21022131010 is a deficient number, since it is larger than the sum of its proper divisors (16968465662).

21022131010 is a wasteful number, since it uses less digits than its factorization.

21022131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375609.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21022131010 its reverse (1013122012), we get a palindrome (22035253022).

The spelling of 21022131010 in words is "twenty-one billion, twenty-two million, one hundred thirty-one thousand, ten".