22122210212 has 24 divisors (see below), whose sum is σ = 38887752960. Its totient is φ = 11011489920.

The previous prime is 22122210197. The next prime is 22122210251. The reversal of 22122210212 is 21201222122.

It is a happy number.

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, 1474364 + ... + 1489292.

It is an arithmetic number, because the mean of its divisors is an integer number (1620323040).

Almost surely, 2^22122210212 is an apocalyptic number.

It is an amenable number.

22122210212 is a deficient number, since it is larger than the sum of its proper divisors (16765542748).

22122210212 is a wasteful number, since it uses less digits than its factorization.

22122210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16571 (or 16569 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122210212 its reverse (21201222122), we get a palindrome (43323432334).

The spelling of 22122210212 in words is "twenty-two billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".