21062227548 has 24 divisors (see below), whose sum is σ = 51731787520. Its totient is φ = 6651229680.

The previous prime is 21062227471. The next prime is 21062227579. The reversal of 21062227548 is 84572226012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46188868 + ... + 46189323.

Almost surely, 2^21062227548 is an apocalyptic number.

It is an amenable number.

21062227548 is an abundant number, since it is smaller than the sum of its proper divisors (30669559972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21062227548 is a wasteful number, since it uses less digits than its factorization.

21062227548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92378217 (or 92378215 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 21062227548 in words is "twenty-one billion, sixty-two million, two hundred twenty-seven thousand, five hundred forty-eight".