22201112212 has 24 divisors (see below), whose sum is σ = 38967465600. Its totient is φ = 11067583296.

The previous prime is 22201112201. The next prime is 22201112233. The reversal of 22201112212 is 21221110222.

It is a happy number.

It is a congruent 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, 4259464 + ... + 4264672.

It is an arithmetic number, because the mean of its divisors is an integer number (1623644400).

Almost surely, 2^22201112212 is an apocalyptic number.

It is an amenable number.

22201112212 is a deficient number, since it is larger than the sum of its proper divisors (16766353388).

22201112212 is a wasteful number, since it uses less digits than its factorization.

22201112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175 (or 8173 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22201112212 its reverse (21221110222), we get a palindrome (43422222434).

The spelling of 22201112212 in words is "twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred twelve".