222021120220 has 48 divisors (see below), whose sum is σ = 490365404928. Its totient is φ = 84322068480.

The previous prime is 222021120169. The next prime is 222021120263. The reversal of 222021120220 is 22021120222.

It is a junction number, because it is equal to n+sod(n) for n = 222021120194 and 222021120203.

It is a congruent number.

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, 3345429 + ... + 3411148.

It is an arithmetic number, because the mean of its divisors is an integer number (10215945936).

Almost surely, 2^222021120220 is an apocalyptic number.

222021120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021120220 is an abundant number, since it is smaller than the sum of its proper divisors (268344284708).

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

222021120220 is a wasteful number, since it uses less digits than its factorization.

222021120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756670 (or 6756668 counting only the distinct ones).

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

Adding to 222021120220 its reverse (22021120222), we get a palindrome (244042240442).

The spelling of 222021120220 in words is "two hundred twenty-two billion, twenty-one million, one hundred twenty thousand, two hundred twenty".