22021223322 has 32 divisors (see below), whose sum is σ = 50436785664. Its totient is φ = 6278958000.

The previous prime is 22021223317. The next prime is 22021223327. The reversal of 22021223322 is 22332212022.

It is an interprime number because it is at equal distance from previous prime (22021223317) and next prime (22021223327).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22021223327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513304 + ... + 554547.

It is an arithmetic number, because the mean of its divisors is an integer number (1576149552).

Almost surely, 2^22021223322 is an apocalyptic number.

22021223322 is an abundant number, since it is smaller than the sum of its proper divisors (28415562342).

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

22021223322 is a wasteful number, since it uses less digits than its factorization.

22021223322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068354.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22021223322 its reverse (22332212022), we get a palindrome (44353435344).

The spelling of 22021223322 in words is "twenty-two billion, twenty-one million, two hundred twenty-three thousand, three hundred twenty-two".