22220211111312 has 80 divisors (see below), whose sum is σ = 57654925920000. Its totient is φ = 7374142282752.

The previous prime is 22220211111271. The next prime is 22220211111313. The reversal of 22220211111312 is 21311111202222.

It is a super-2 number, since 2×22220211111312² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22220211111313) 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 15 ways as a sum of consecutive naturals, for example, 53125014 + ... + 53541642.

It is an arithmetic number, because the mean of its divisors is an integer number (720686574000).

Almost surely, 2^{22220211111312} is an apocalyptic number.

It is an amenable number.

22220211111312 is an abundant number, since it is smaller than the sum of its proper divisors (35434714808688).

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

22220211111312 is a wasteful number, since it uses less digits than its factorization.

22220211111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421528 (or 421522 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 22220211111312 its reverse (21311111202222), we get a palindrome (43531322313534).

It can be divided in two parts, 2222021 and 1111312, that added together give a palindrome (3333333).

The spelling of 22220211111312 in words is "twenty-two trillion, two hundred twenty billion, two hundred eleven million, one hundred eleven thousand, three hundred twelve".