22220220022120 has 128 divisors (see below), whose sum is σ = 52485696489600. Its totient is φ = 8458717446144.

The previous prime is 22220220022097. The next prime is 22220220022177. The reversal of 22220220022120 is 2122002202222.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10498384 + ... + 12436096.

It is an arithmetic number, because the mean of its divisors is an integer number (410044503825).

Almost surely, 2^{22220220022120} is an apocalyptic number.

22220220022120 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 22220220022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26242848244800).

22220220022120 is an abundant number, since it is smaller than the sum of its proper divisors (30265476467480).

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

22220220022120 is a wasteful number, since it uses less digits than its factorization.

22220220022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937939 (or 1937935 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22220220022120 its reverse (2122002202222), we get a palindrome (24342222224342).

The spelling of 22220220022120 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty million, twenty-two thousand, one hundred twenty".