22211321312 has 24 divisors (see below), whose sum is σ = 44219876400. Its totient is φ = 10980876544.

The previous prime is 22211321311. The next prime is 22211321317. The reversal of 22211321312 is 21312311222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211321311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3896612 + ... + 3902307.

It is an arithmetic number, because the mean of its divisors is an integer number (1842494850).

Almost surely, 2^22211321312 is an apocalyptic number.

It is an amenable number.

22211321312 is a deficient number, since it is larger than the sum of its proper divisors (22008555088).

22211321312 is an equidigital number, since it uses as much as digits as its factorization.

22211321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799018 (or 7799010 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 22211321312 its reverse (21312311222), we get a palindrome (43523632534).

The spelling of 22211321312 in words is "twenty-two billion, two hundred eleven million, three hundred twenty-one thousand, three hundred twelve".