220335231400 has 48 divisors (see below), whose sum is σ = 529944234300. Its totient is φ = 85094983680.

The previous prime is 220335231377. The next prime is 220335231419. The reversal of 220335231400 is 4132533022.

It can be written as a sum of positive squares in 6 ways, for example, as 92984744356 + 127350487044 = 304934^2 + 356862^2 .

It is a super-2 number, since 2×220335231400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18988617 + ... + 19000216.

Almost surely, 2^220335231400 is an apocalyptic number.

220335231400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220335231400 is an abundant number, since it is smaller than the sum of its proper divisors (309609002900).

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

220335231400 is a wasteful number, since it uses less digits than its factorization.

220335231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37988878 (or 37988869 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 220335231400 its reverse (4132533022), we get a palindrome (224467764422).

The spelling of 220335231400 in words is "two hundred twenty billion, three hundred thirty-five million, two hundred thirty-one thousand, four hundred".