21272848110 has 48 divisors (see below), whose sum is σ = 55339311456. Its totient is φ = 5669692224.

The previous prime is 21272848087. The next prime is 21272848127. The reversal of 21272848110 is 1184827212.

It is a happy number.

It is a super-2 number, since 2×21272848110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105967 + ... + 231893.

It is an arithmetic number, because the mean of its divisors is an integer number (1152902322).

Almost surely, 2^21272848110 is an apocalyptic number.

21272848110 is an abundant number, since it is smaller than the sum of its proper divisors (34066463346).

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

21272848110 is a wasteful number, since it uses less digits than its factorization.

21272848110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127817 (or 127814 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The spelling of 21272848110 in words is "twenty-one billion, two hundred seventy-two million, eight hundred forty-eight thousand, one hundred ten".