22220021112 has 32 divisors (see below), whose sum is σ = 55553996880. Its totient is φ = 7406147840.

The previous prime is 22220021081. The next prime is 22220021137. The reversal of 22220021112 is 21112002222.

It is a junction number, because it is equal to n+sod(n) for n = 22220021091 and 22220021100.

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, 467938 + ... + 513230.

Almost surely, 2^22220021112 is an apocalyptic number.

It is an amenable number.

22220021112 is an abundant number, since it is smaller than the sum of its proper divisors (33333975768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22220021112 is a wasteful number, since it uses less digits than its factorization.

22220021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65743 (or 65739 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22220021112 its reverse (21112002222), we get a palindrome (43332023334).

The spelling of 22220021112 in words is "twenty-two billion, two hundred twenty million, twenty-one thousand, one hundred twelve".