21414472522 has 4 divisors (see below), whose sum is σ = 32121708786. Its totient is φ = 10707236260.

The previous prime is 21414472517. The next prime is 21414472537. The reversal of 21414472522 is 22527441412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20437847521 + 976625001 = 142961^2 + 31251^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5353618129 + ... + 5353618132.

Almost surely, 2^21414472522 is an apocalyptic number.

21414472522 is a deficient number, since it is larger than the sum of its proper divisors (10707236264).

21414472522 is a wasteful number, since it uses less digits than its factorization.

21414472522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707236263.

The product of its digits is 35840, while the sum is 34.

The spelling of 21414472522 in words is "twenty-one billion, four hundred fourteen million, four hundred seventy-two thousand, five hundred twenty-two".