22101220112 has 10 divisors (see below), whose sum is σ = 42821113998. Its totient is φ = 11050610048.

The previous prime is 22101220111. The next prime is 22101220129. The reversal of 22101220112 is 21102210122.

It can be written as a sum of positive squares in only one way, i.e., 16916644096 + 5184576016 = 130064^2 + 72004^2 .

It is not an unprimeable number, because it can be changed into a prime (22101220111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690663113 + ... + 690663144.

Almost surely, 2^22101220112 is an apocalyptic number.

It is an amenable number.

22101220112 is a deficient number, since it is larger than the sum of its proper divisors (20719893886).

22101220112 is a wasteful number, since it uses less digits than its factorization.

22101220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381326265 (or 1381326259 counting only the distinct ones).

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

Adding to 22101220112 its reverse (21102210122), we get a palindrome (43203430234).

The spelling of 22101220112 in words is "twenty-two billion, one hundred one million, two hundred twenty thousand, one hundred twelve".