220401838220 has 24 divisors (see below), whose sum is σ = 463121581104. Its totient is φ = 88107836096.

The previous prime is 220401838201. The next prime is 220401838247. The reversal of 220401838220 is 22838104022.

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, 3272027 + ... + 3338706.

It is an arithmetic number, because the mean of its divisors is an integer number (19296732546).

Almost surely, 2^220401838220 is an apocalyptic number.

220401838220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220401838220 is an abundant number, since it is smaller than the sum of its proper divisors (242719742884).

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

220401838220 is a wasteful number, since it uses less digits than its factorization.

220401838220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612409 (or 6612407 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 220401838220 in words is "two hundred twenty billion, four hundred one million, eight hundred thirty-eight thousand, two hundred twenty".