222202012212 has 192 divisors, whose sum is σ = 611223782400. Its totient is φ = 69613084800.

The previous prime is 222202012199. The next prime is 222202012261. The reversal of 222202012212 is 212210202222.

222202012212 is a `hidden beast` number, since 22 + 220 + 201 + 221 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 211419087 + ... + 211420137.

It is an arithmetic number, because the mean of its divisors is an integer number (3183457200).

Almost surely, 2^222202012212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222202012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305611891200).

222202012212 is an abundant number, since it is smaller than the sum of its proper divisors (389021770188).

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

222202012212 is a wasteful number, since it uses less digits than its factorization.

222202012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1795 counting only the distinct ones).

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

Adding to 222202012212 its reverse (212210202222), we get a palindrome (434412214434).

The spelling of 222202012212 in words is "two hundred twenty-two billion, two hundred two million, twelve thousand, two hundred twelve".