222122321022 has 64 divisors (see below), whose sum is σ = 524432867328. Its totient is φ = 61375644000.

The previous prime is 222122321009. The next prime is 222122321027. The reversal of 222122321022 is 220123221222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222122321022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122321027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1937647 + ... + 2049077.

It is an arithmetic number, because the mean of its divisors is an integer number (8194263552).

Almost surely, 2^222122321022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222122321022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262216433664).

222122321022 is an abundant number, since it is smaller than the sum of its proper divisors (302310546306).

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

222122321022 is a wasteful number, since it uses less digits than its factorization.

222122321022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113005.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222122321022 its reverse (220123221222), we get a palindrome (442245542244).

The spelling of 222122321022 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred twenty-one thousand, twenty-two".