22012022222 has 32 divisors (see below), whose sum is σ = 34429095360. Its totient is φ = 10548195840.

The previous prime is 22012022213. The next prime is 22012022237. The reversal of 22012022222 is 22222021022.

It is a self number, because there is not a number n which added to its sum of digits gives 22012022222.

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, 806918 + ... + 833750.

It is an arithmetic number, because the mean of its divisors is an integer number (1075909230).

Almost surely, 2^22012022222 is an apocalyptic number.

22012022222 is a deficient number, since it is larger than the sum of its proper divisors (12417073138).

22012022222 is a wasteful number, since it uses less digits than its factorization.

22012022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27068.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22012022222 its reverse (22222021022), we get a palindrome (44234043244).

The spelling of 22012022222 in words is "twenty-two billion, twelve million, twenty-two thousand, two hundred twenty-two".