222221022011212 has 54 divisors (see below), whose sum is σ = 477441030525732. Its totient is φ = 90225076577328.

The previous prime is 222221022011159. The next prime is 222221022011239. The reversal of 222221022011212 is 212110220122222.

222221022011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1570262658 + ... + 1570404169.

Almost surely, 2^{222221022011212} is an apocalyptic number.

It is an amenable number.

222221022011212 is an abundant number, since it is smaller than the sum of its proper divisors (255220008514520).

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

222221022011212 is a wasteful number, since it uses less digits than its factorization.

222221022011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140666883 (or 3140666855 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222221022011212 its reverse (212110220122222), we get a palindrome (434331242133434).

The spelling of 222221022011212 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-two million, eleven thousand, two hundred twelve".