20112012222 has 16 divisors (see below), whose sum is σ = 41972895360. Its totient is φ = 6412525592.

The previous prime is 20112012209. The next prime is 20112012251. The reversal of 20112012222 is 22221021102.

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, 72869472 + ... + 72869747.

It is an arithmetic number, because the mean of its divisors is an integer number (2623305960).

Almost surely, 2^20112012222 is an apocalyptic number.

20112012222 is an abundant number, since it is smaller than the sum of its proper divisors (21860883138).

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

20112012222 is a wasteful number, since it uses less digits than its factorization.

20112012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145739247.

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

Adding to 20112012222 its reverse (22221021102), we get a palindrome (42333033324).

The spelling of 20112012222 in words is "twenty billion, one hundred twelve million, twelve thousand, two hundred twenty-two".