10642642220 has 36 divisors (see below), whose sum is σ = 25998456960. Its totient is φ = 3648905568.

The previous prime is 10642642193. The next prime is 10642642229. The reversal of 10642642220 is 2224624601.

It is a super-2 number, since 2×10642642220² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10642642229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5428940 + ... + 5430899.

It is an arithmetic number, because the mean of its divisors is an integer number (722179360).

Almost surely, 2^10642642220 is an apocalyptic number.

10642642220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10642642220 is an abundant number, since it is smaller than the sum of its proper divisors (15355814740).

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

10642642220 is a wasteful number, since it uses less digits than its factorization.

10642642220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10859862 (or 10859853 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 10642642220 in words is "ten billion, six hundred forty-two million, six hundred forty-two thousand, two hundred twenty".