232101220 has 36 divisors (see below), whose sum is σ = 527797620. Its totient is φ = 85697664.

The previous prime is 232101217. The next prime is 232101271. The reversal of 232101220 is 22101232.

It can be written as a sum of positive squares in 6 ways, for example, as 1790244 + 230310976 = 1338^2 + 15176^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 232101220.

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, 30955 + ... + 37714.

It is an arithmetic number, because the mean of its divisors is an integer number (14661045).

Almost surely, 2^232101220 is an apocalyptic number.

232101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232101220 is an abundant number, since it is smaller than the sum of its proper divisors (295696400).

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

232101220 is a wasteful number, since it uses less digits than its factorization.

232101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68704 (or 68689 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 232101220 is about 15234.8685586716. The cubic root of 232101220 is about 614.5527141871.

Adding to 232101220 its reverse (22101232), we get a palindrome (254202452).

The spelling of 232101220 in words is "two hundred thirty-two million, one hundred one thousand, two hundred twenty".