22123422212 has 24 divisors (see below), whose sum is σ = 40272337560. Its totient is φ = 10621255680.

The previous prime is 22123422203. The next prime is 22123422253. The reversal of 22123422212 is 21222432122.

It can be written as a sum of positive squares in 4 ways, for example, as 1105961536 + 21017460676 = 33256^2 + 144974^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505853 + ... + 547844.

It is an arithmetic number, because the mean of its divisors is an integer number (1678014065).

Almost surely, 2^22123422212 is an apocalyptic number.

It is an amenable number.

22123422212 is a deficient number, since it is larger than the sum of its proper divisors (18148915348).

22123422212 is a wasteful number, since it uses less digits than its factorization.

22123422212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053911 (or 1053909 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

Adding to 22123422212 its reverse (21222432122), we get a palindrome (43345854334).

The spelling of 22123422212 in words is "twenty-two billion, one hundred twenty-three million, four hundred twenty-two thousand, two hundred twelve".