22311323222212 has 12 divisors (see below), whose sum is σ = 39044880505260. Its totient is φ = 11155643077856.

The previous prime is 22311323222159. The next prime is 22311323222213. The reversal of 22311323222212 is 21222232311322.

It can be written as a sum of positive squares in 2 ways, for example, as 10142849126656 + 12168474095556 = 3184784^2 + 3488334^2 .

It is a super-3 number, since 3×22311323222212³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22311323222213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1721287 + ... + 6898222.

It is an arithmetic number, because the mean of its divisors is an integer number (3253740042105).

Almost surely, 2^{22311323222212} is an apocalyptic number.

It is an amenable number.

22311323222212 is a deficient number, since it is larger than the sum of its proper divisors (16733557283048).

22311323222212 is a wasteful number, since it uses less digits than its factorization.

22311323222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9266630 (or 9266628 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 22311323222212 its reverse (21222232311322), we get a palindrome (43533555533534).

The spelling of 22311323222212 in words is "twenty-two trillion, three hundred eleven billion, three hundred twenty-three million, two hundred twenty-two thousand, two hundred twelve".