22442154212 has 12 divisors (see below), whose sum is σ = 39386953200. Its totient is φ = 11188739016.

The previous prime is 22442154211. The next prime is 22442154239. The reversal of 22442154212 is 21245124422.

It is not an unprimeable number, because it can be changed into a prime (22442154211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8082962 + ... + 8085737.

It is an arithmetic number, because the mean of its divisors is an integer number (3282246100).

Almost surely, 2^22442154212 is an apocalyptic number.

It is an amenable number.

22442154212 is a deficient number, since it is larger than the sum of its proper divisors (16944798988).

22442154212 is a wasteful number, since it uses less digits than its factorization.

22442154212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16169050 (or 16169048 counting only the distinct ones).

The product of its digits is 10240, while the sum is 29.

Adding to 22442154212 its reverse (21245124422), we get a palindrome (43687278634).

The spelling of 22442154212 in words is "twenty-two billion, four hundred forty-two million, one hundred fifty-four thousand, two hundred twelve".