22212131222 has 32 divisors (see below), whose sum is σ = 36661555200. Its totient is φ = 10053201600.

The previous prime is 22212131197. The next prime is 22212131231. The reversal of 22212131222 is 22213121222.

It is a junction number, because it is equal to n+sod(n) for n = 22212131194 and 22212131203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26279 + ... + 212402.

It is an arithmetic number, because the mean of its divisors is an integer number (1145673600).

Almost surely, 2^22212131222 is an apocalyptic number.

22212131222 is a deficient number, since it is larger than the sum of its proper divisors (14449423978).

22212131222 is a wasteful number, since it uses less digits than its factorization.

22212131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238812.

The product of its digits is 384, while the sum is 20.

Adding to 22212131222 its reverse (22213121222), we get a palindrome (44425252444).

The spelling of 22212131222 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, two hundred twenty-two".