222102201220 has 24 divisors (see below), whose sum is σ = 467089636608. Its totient is φ = 88712306400.

The previous prime is 222102201173. The next prime is 222102201221. The reversal of 222102201220 is 22102201222.

It is a junction number, because it is equal to n+sod(n) for n = 222102201194 and 222102201203.

It is not an unprimeable number, because it can be changed into a prime (222102201221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8021716 + ... + 8049355.

It is an arithmetic number, because the mean of its divisors is an integer number (19462068192).

Almost surely, 2^222102201220 is an apocalyptic number.

222102201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102201220 is an abundant number, since it is smaller than the sum of its proper divisors (244987435388).

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

222102201220 is a wasteful number, since it uses less digits than its factorization.

222102201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16071771 (or 16071769 counting only the distinct ones).

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

Adding to 222102201220 its reverse (22102201222), we get a palindrome (244204402442).

The spelling of 222102201220 in words is "two hundred twenty-two billion, one hundred two million, two hundred one thousand, two hundred twenty".