220215222 has 24 divisors (see below), whose sum is σ = 478521576. Its totient is φ = 73191456.

The previous prime is 220215221. The next prime is 220215253. The reversal of 220215222 is 222512022.

220215222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220215195 and 220215204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220215221) 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, 11383 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (19938399).

Almost surely, 2^220215222 is an apocalyptic number.

220215222 is an abundant number, since it is smaller than the sum of its proper divisors (258306354).

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

220215222 is a wasteful number, since it uses less digits than its factorization.

220215222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35612 (or 35609 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 220215222 is about 14839.6503328077. The cubic root of 220215222 is about 603.8778662603.

Adding to 220215222 its reverse (222512022), we get a palindrome (442727244).

It can be divided in two parts, 2202 and 15222, that added together give a square (17424 = 132²).

The spelling of 220215222 in words is "two hundred twenty million, two hundred fifteen thousand, two hundred twenty-two".