10421968220 has 12 divisors (see below), whose sum is σ = 21886133304. Its totient is φ = 4168787280.

The previous prime is 10421968189. The next prime is 10421968223. The reversal of 10421968220 is 2286912401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421968223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260549186 + ... + 260549225.

It is an arithmetic number, because the mean of its divisors is an integer number (1823844442).

Almost surely, 2^10421968220 is an apocalyptic number.

10421968220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421968220 is an abundant number, since it is smaller than the sum of its proper divisors (11464165084).

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

10421968220 is a wasteful number, since it uses less digits than its factorization.

10421968220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521098420 (or 521098418 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 10421968220 in words is "ten billion, four hundred twenty-one million, nine hundred sixty-eight thousand, two hundred twenty".