22222012120 has 384 divisors, whose sum is σ = 67548349440. Its totient is φ = 6379591680.

The previous prime is 22222012067. The next prime is 22222012157. The reversal of 22222012120 is 2121022222.

It is a super-2 number, since 2×22222012120² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22222012094 and 22222012103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59576254 + ... + 59576626.

It is an arithmetic number, because the mean of its divisors is an integer number (175907160).

Almost surely, 2^22222012120 is an apocalyptic number.

22222012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33774174720).

22222012120 is an abundant number, since it is smaller than the sum of its proper divisors (45326337320).

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

22222012120 is a wasteful number, since it uses less digits than its factorization.

22222012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 450 counting only the distinct ones).

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

Adding to 22222012120 its reverse (2121022222), we get a palindrome (24343034342).

The spelling of 22222012120 in words is "twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred twenty".