22212022 has 16 divisors (see below), whose sum is σ = 38142720. Its totient is φ = 9503208.

The previous prime is 22212019. The next prime is 22212049. The reversal of 22212022 is 22021222.

It is a plaindrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 22211993 and 22212011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11103 + ... + 12949.

It is an arithmetic number, because the mean of its divisors is an integer number (2383920).

Almost surely, 2^22212022 is an apocalyptic number.

22212022 is a deficient number, since it is larger than the sum of its proper divisors (15930698).

22212022 is a wasteful number, since it uses less digits than its factorization.

22212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22212022 is about 4712.9631867860. The cubic root of 22212022 is about 281.1011991809.

Adding to 22212022 its reverse (22021222), we get a palindrome (44233244).

The spelling of 22212022 in words is "twenty-two million, two hundred twelve thousand, twenty-two".