220213231 has 8 divisors (see below), whose sum is σ = 251793824. Its totient is φ = 188663040.

The previous prime is 220213141. The next prime is 220213267. The reversal of 220213231 is 132312022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220213231 - 2²⁵ = 186658799 is a prime.

It is a super-2 number, since 2×220213231² = 96987734214918722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220213531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10951 + ... + 23671.

It is an arithmetic number, because the mean of its divisors is an integer number (31474228).

Almost surely, 2^220213231 is an apocalyptic number.

220213231 is a deficient number, since it is larger than the sum of its proper divisors (31580593).

220213231 is a wasteful number, since it uses less digits than its factorization.

220213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15201.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220213231 is about 14839.5832488652. The cubic root of 220213231 is about 603.8760463370.

Adding to 220213231 its reverse (132312022), we get a palindrome (352525253).

It can be divided in two parts, 22021 and 3231, that added together give a palindrome (25252).

The spelling of 220213231 in words is "two hundred twenty million, two hundred thirteen thousand, two hundred thirty-one".