20022222112 has 48 divisors (see below), whose sum is σ = 40111606080. Its totient is φ = 9835930368.

The previous prime is 20022222109. The next prime is 20022222113. The reversal of 20022222112 is 21122222002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20022222113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822013 + ... + 846019.

It is an arithmetic number, because the mean of its divisors is an integer number (835658460).

Almost surely, 2^20022222112 is an apocalyptic number.

It is an amenable number.

20022222112 is an abundant number, since it is smaller than the sum of its proper divisors (20089383968).

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

20022222112 is a wasteful number, since it uses less digits than its factorization.

20022222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24473 (or 24465 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20022222112 its reverse (21122222002), we get a palindrome (41144444114).

The spelling of 20022222112 in words is "twenty billion, twenty-two million, two hundred twenty-two thousand, one hundred twelve".