222210212220 has 48 divisors (see below), whose sum is σ = 691320661920. Its totient is φ = 59256056448.

The previous prime is 222210212183. The next prime is 222210212233. The reversal of 222210212220 is 22212012222.

222210212220 is a `hidden beast` number, since 2 + 22 + 210 + 212 + 220 = 666.

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 = 222210212193 and 222210212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205749657 + ... + 205750736.

It is an arithmetic number, because the mean of its divisors is an integer number (14402513790).

Almost surely, 2^222210212220 is an apocalyptic number.

222210212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222210212220 is an abundant number, since it is smaller than the sum of its proper divisors (469110449700).

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

222210212220 is a wasteful number, since it uses less digits than its factorization.

222210212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411500411 (or 411500403 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222210212220 its reverse (22212012222), we get a palindrome (244422224442).

It can be divided in two parts, 2222102 and 12220, that added together give a palindrome (2234322).

The spelling of 222210212220 in words is "two hundred twenty-two billion, two hundred ten million, two hundred twelve thousand, two hundred twenty".