22212002022 has 64 divisors (see below), whose sum is σ = 53570764800. Its totient is φ = 5997831840.

The previous prime is 22212001993. The next prime is 22212002039. The reversal of 22212002022 is 22020021222.

It is a junction number, because it is equal to n+sod(n) for n = 22212001992 and 22212002010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301147 + ... + 367577.

It is an arithmetic number, because the mean of its divisors is an integer number (837043200).

Almost surely, 2^22212002022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212002022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26785382400).

22212002022 is an abundant number, since it is smaller than the sum of its proper divisors (31358762778).

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

22212002022 is a wasteful number, since it uses less digits than its factorization.

22212002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66881.

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

Adding to 22212002022 its reverse (22020021222), we get a palindrome (44232023244).

It can be divided in two parts, 2221200 and 2022, that added together give a palindrome (2223222).

The spelling of 22212002022 in words is "twenty-two billion, two hundred twelve million, two thousand, twenty-two".