21022010132 has 12 divisors (see below), whose sum is σ = 37782802260. Its totient is φ = 10226923776.

The previous prime is 21022010111. The next prime is 21022010171. The reversal of 21022010132 is 23101022012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17340675856 + 3681334276 = 131684^2 + 60674^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71020157 + ... + 71020452.

It is an arithmetic number, because the mean of its divisors is an integer number (3148566855).

Almost surely, 2^21022010132 is an apocalyptic number.

It is an amenable number.

21022010132 is a deficient number, since it is larger than the sum of its proper divisors (16760792128).

21022010132 is a wasteful number, since it uses less digits than its factorization.

21022010132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142040650 (or 142040648 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21022010132 its reverse (23101022012), we get a palindrome (44123032144).

The spelling of 21022010132 in words is "twenty-one billion, twenty-two million, ten thousand, one hundred thirty-two".