22001112212 has 24 divisors (see below), whose sum is σ = 39037521600. Its totient is φ = 10848188736.

The previous prime is 22001112169. The next prime is 22001112223. The reversal of 22001112212 is 21221110022.

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, 53393 + ... + 216455.

It is an arithmetic number, because the mean of its divisors is an integer number (1626563400).

Almost surely, 2^22001112212 is an apocalyptic number.

It is an amenable number.

22001112212 is a deficient number, since it is larger than the sum of its proper divisors (17036409388).

22001112212 is a wasteful number, since it uses less digits than its factorization.

22001112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163535 (or 163533 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22001112212 its reverse (21221110022), we get a palindrome (43222222234).

The spelling of 22001112212 in words is "twenty-two billion, one million, one hundred twelve thousand, two hundred twelve".