22022011212222 has 32 divisors (see below), whose sum is σ = 50336183096064. Its totient is φ = 6291983520000.

The previous prime is 22022011212191. The next prime is 22022011212239. The reversal of 22022011212222 is 22221211022022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17669097 + ... + 18874347.

It is an arithmetic number, because the mean of its divisors is an integer number (1573005721752).

Almost surely, 2^{22022011212222} is an apocalyptic number.

22022011212222 is an abundant number, since it is smaller than the sum of its proper divisors (28314171883842).

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

22022011212222 is a wasteful number, since it uses less digits than its factorization.

22022011212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640304.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22022011212222 its reverse (22221211022022), we get a palindrome (44243222234244).

The spelling of 22022011212222 in words is "twenty-two trillion, twenty-two billion, eleven million, two hundred twelve thousand, two hundred twenty-two".