22131213122 has 16 divisors (see below), whose sum is σ = 35497594872. Its totient is φ = 10311571200.

The previous prime is 22131213121. The next prime is 22131213133.

22131213122 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 21998525761 + 132687361 = 148319^2 + 11519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22131213094 and 22131213103.

It is not an unprimeable number, because it can be changed into a prime (22131213121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3218933 + ... + 3225800.

Almost surely, 2^22131213122 is an apocalyptic number.

22131213122 is a deficient number, since it is larger than the sum of its proper divisors (13366381750).

22131213122 is a wasteful number, since it uses less digits than its factorization.

22131213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444853.

The product of its digits is 288, while the sum is 20.

The spelling of 22131213122 in words is "twenty-two billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-two".