21211602532 has 12 divisors (see below), whose sum is σ = 37467223920. Its totient is φ = 10506681416.

The previous prime is 21211602509. The next prime is 21211602551. The reversal of 21211602532 is 23520611212.

It is a super-2 number, since 2×21211602532² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21211602497 and 21211602506.

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, 24779482 + ... + 24780337.

It is an arithmetic number, because the mean of its divisors is an integer number (3122268660).

Almost surely, 2^21211602532 is an apocalyptic number.

It is an amenable number.

21211602532 is a deficient number, since it is larger than the sum of its proper divisors (16255621388).

21211602532 is a wasteful number, since it uses less digits than its factorization.

21211602532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49559930 (or 49559928 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 21211602532 in words is "twenty-one billion, two hundred eleven million, six hundred two thousand, five hundred thirty-two".