21522301132 has 6 divisors (see below), whose sum is σ = 37664026988. Its totient is φ = 10761150564.

The previous prime is 21522301123. The next prime is 21522301169. The reversal of 21522301132 is 23110322512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2690287638 + ... + 2690287645.

Almost surely, 2^21522301132 is an apocalyptic number.

It is an amenable number.

21522301132 is a deficient number, since it is larger than the sum of its proper divisors (16141725856).

21522301132 is a wasteful number, since it uses less digits than its factorization.

21522301132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380575287 (or 5380575285 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 21522301132 its reverse (23110322512), we get a palindrome (44632623644).

The spelling of 21522301132 in words is "twenty-one billion, five hundred twenty-two million, three hundred one thousand, one hundred thirty-two".