22222020122112 has 80 divisors (see below), whose sum is σ = 59219904973680. Its totient is φ = 7404955901952.

The previous prime is 22222020122101. The next prime is 22222020122161. The reversal of 22222020122112 is 21122102022222.

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, 2448718 + ... + 7102130.

It is an arithmetic number, because the mean of its divisors is an integer number (740248812171).

Almost surely, 2^{22222020122112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222020122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29609952486840).

22222020122112 is an abundant number, since it is smaller than the sum of its proper divisors (36997884851568).

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

22222020122112 is an equidigital number, since it uses as much as digits as its factorization.

22222020122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656543 (or 4656527 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22222020122112 its reverse (21122102022222), we get a palindrome (43344122144334).

The spelling of 22222020122112 in words is "twenty-two trillion, two hundred twenty-two billion, twenty million, one hundred twenty-two thousand, one hundred twelve".