22122202122 has 48 divisors (see below), whose sum is σ = 48282104520. Its totient is φ = 7320208896.

The previous prime is 22122202103. The next prime is 22122202127. The reversal of 22122202122 is 22120222122.

It can be written as a sum of positive squares in 4 ways, for example, as 21930351921 + 191850201 = 148089^2 + 13851^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22122202095 and 22122202104.

It is not an unprimeable number, because it can be changed into a prime (22122202127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3639678 + ... + 3645750.

Almost surely, 2^22122202122 is an apocalyptic number.

22122202122 is an abundant number, since it is smaller than the sum of its proper divisors (26159902398).

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

22122202122 is a wasteful number, since it uses less digits than its factorization.

22122202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22122202122 its reverse (22120222122), we get a palindrome (44242424244).

The spelling of 22122202122 in words is "twenty-two billion, one hundred twenty-two million, two hundred two thousand, one hundred twenty-two".