22212202120 has 64 divisors (see below), whose sum is σ = 51225577920. Its totient is φ = 8663687424.

The previous prime is 22212202097. The next prime is 22212202157. The reversal of 22212202120 is 2120221222.

It is a junction number, because it is equal to n+sod(n) for n = 22212202094 and 22212202103.

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, 1043827 + ... + 1064893.

It is an arithmetic number, because the mean of its divisors is an integer number (800399655).

Almost surely, 2^22212202120 is an apocalyptic number.

22212202120 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 22212202120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25612788960).

22212202120 is an abundant number, since it is smaller than the sum of its proper divisors (29013375800).

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

22212202120 is a wasteful number, since it uses less digits than its factorization.

22212202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21734 (or 21730 counting only the distinct ones).

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

Adding to 22212202120 its reverse (2120221222), we get a palindrome (24332423342).

The spelling of 22212202120 in words is "twenty-two billion, two hundred twelve million, two hundred two thousand, one hundred twenty".