222020220120 has 128 divisors (see below), whose sum is σ = 686494448640. Its totient is φ = 57406786560.

The previous prime is 222020220091. The next prime is 222020220217. The reversal of 222020220120 is 21022020222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222020220120.

It is a congruent number.

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, 663537 + ... + 940383.

It is an arithmetic number, because the mean of its divisors is an integer number (5363237880).

Almost surely, 2^222020220120 is an apocalyptic number.

222020220120 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 222020220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343247224320).

222020220120 is an abundant number, since it is smaller than the sum of its proper divisors (464474228520).

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

222020220120 is a wasteful number, since it uses less digits than its factorization.

222020220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277065 (or 277061 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222020220120 its reverse (21022020222), we get a palindrome (243042240342).

The spelling of 222020220120 in words is "two hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred twenty".