22120011112 has 8 divisors (see below), whose sum is σ = 41475020850. Its totient is φ = 11060005552.

The previous prime is 22120011103. The next prime is 22120011119. The reversal of 22120011112 is 21111002122.

It can be written as a sum of positive squares in only one way, i.e., 21967389796 + 152621316 = 148214^2 + 12354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22120011092 and 22120011101.

It is not an unprimeable number, because it can be changed into a prime (22120011119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382500687 + ... + 1382500702.

Almost surely, 2^22120011112 is an apocalyptic number.

It is an amenable number.

22120011112 is a deficient number, since it is larger than the sum of its proper divisors (19355009738).

22120011112 is a wasteful number, since it uses less digits than its factorization.

22120011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765001395 (or 2765001391 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22120011112 its reverse (21111002122), we get a palindrome (43231013234).

The spelling of 22120011112 in words is "twenty-two billion, one hundred twenty million, eleven thousand, one hundred twelve".