12222220112120 has 64 divisors (see below), whose sum is σ = 28754091555840. Its totient is φ = 4666803433600.

The previous prime is 12222220112119. The next prime is 12222220112209. The reversal of 12222220112120 is 2121102222221.

12222220112120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12222220112120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12222220112092 and 12222220112101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13076816 + ... + 13980255.

It is an arithmetic number, because the mean of its divisors is an integer number (449282680560).

Almost surely, 2^{12222220112120} is an apocalyptic number.

12222220112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222220112120 is an abundant number, since it is smaller than the sum of its proper divisors (16531871443720).

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

12222220112120 is a wasteful number, since it uses less digits than its factorization.

12222220112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27057596 (or 27057592 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12222220112120 its reverse (2121102222221), we get a palindrome (14343322334341).

The spelling of 12222220112120 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one hundred twenty".