220854213820 has 24 divisors (see below), whose sum is σ = 463806142128. Its totient is φ = 88339344000.

The previous prime is 220854213809. The next prime is 220854213851. The reversal of 220854213820 is 28312458022.

It is a self number, because there is not a number n which added to its sum of digits gives 220854213820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765720 + ... + 1013920.

It is an arithmetic number, because the mean of its divisors is an integer number (19325255922).

Almost surely, 2^220854213820 is an apocalyptic number.

220854213820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220854213820 is an abundant number, since it is smaller than the sum of its proper divisors (242951928308).

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

220854213820 is a wasteful number, since it uses less digits than its factorization.

220854213820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292701 (or 292699 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 220854213820 in words is "two hundred twenty billion, eight hundred fifty-four million, two hundred thirteen thousand, eight hundred twenty".