22012020112 has 10 divisors (see below), whose sum is σ = 42648288998. Its totient is φ = 11006010048.

The previous prime is 22012020089. The next prime is 22012020113. The reversal of 22012020112 is 21102021022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21994076416 + 17943696 = 148304^2 + 4236^2 .

It is a super-2 number, since 2×22012020112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22012020092 and 22012020101.

It is not an unprimeable number, because it can be changed into a prime (22012020113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687875613 + ... + 687875644.

Almost surely, 2^22012020112 is an apocalyptic number.

It is an amenable number.

22012020112 is a deficient number, since it is larger than the sum of its proper divisors (20636268886).

22012020112 is a wasteful number, since it uses less digits than its factorization.

22012020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375751265 (or 1375751259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22012020112 its reverse (21102021022), we get a palindrome (43114041134).

The spelling of 22012020112 in words is "twenty-two billion, twelve million, twenty thousand, one hundred twelve".