22002212022 has 128 divisors (see below), whose sum is σ = 55660898304. Its totient is φ = 5649481728.

The previous prime is 22002211961. The next prime is 22002212051. The reversal of 22002212022 is 22021220022.

It is a super-2 number, since 2×22002212022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22002211992 and 22002212010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16963278 + ... + 16964574.

It is an arithmetic number, because the mean of its divisors is an integer number (434850768).

Almost surely, 2^22002212022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002212022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27830449152).

22002212022 is an abundant number, since it is smaller than the sum of its proper divisors (33658686282).

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

22002212022 is a wasteful number, since it uses less digits than its factorization.

22002212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22002212022 its reverse (22021220022), we get a palindrome (44023432044).

The spelling of 22002212022 in words is "twenty-two billion, two million, two hundred twelve thousand, twenty-two".