220001232 has 60 divisors (see below), whose sum is σ = 624716960. Its totient is φ = 66665280.

The previous prime is 220001231. The next prime is 220001237. The reversal of 220001232 is 232100022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001231) 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, 13132 + ... + 24747.

Almost surely, 2^220001232 is an apocalyptic number.

220001232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220001232 is an abundant number, since it is smaller than the sum of its proper divisors (404715728).

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

220001232 is a wasteful number, since it uses less digits than its factorization.

220001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37912 (or 37895 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220001232 is about 14832.4385048447. The cubic root of 220001232 is about 603.6822005490.

Adding to 220001232 its reverse (232100022), we get a palindrome (452101254).

It can be divided in two parts, 22000 and 1232, that added together give a palindrome (23232).

The spelling of 220001232 in words is "two hundred twenty million, one thousand, two hundred thirty-two".