22220201210120 has 32 divisors (see below), whose sum is σ = 49996529757720. Its totient is φ = 8887889011200.

The previous prime is 22220201209961. The next prime is 22220201210159. The reversal of 22220201210120 is 2101210202222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11041784034724 + 11178417175396 = 3322918^2 + 3343414^2 .

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, 4096187 + ... + 7824266.

Almost surely, 2^{22220201210120} is an apocalyptic number.

22220201210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220201210120 is an abundant number, since it is smaller than the sum of its proper divisors (27776328547600).

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

22220201210120 is a wasteful number, since it uses less digits than its factorization.

22220201210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11967065 (or 11967061 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22220201210120 its reverse (2101210202222), we get a palindrome (24321411412342).

The spelling of 22220201210120 in words is "twenty-two trillion, two hundred twenty billion, two hundred one million, two hundred ten thousand, one hundred twenty".