222102121221220 has 96 divisors (see below), whose sum is σ = 503037061890048. Its totient is φ = 82168105295232.

The previous prime is 222102121221179. The next prime is 222102121221223. The reversal of 222102121221220 is 22122121201222.

It is a junction number, because it is equal to n+sod(n) for n = 222102121221191 and 222102121221200.

It is not an unprimeable number, because it can be changed into a prime (222102121221223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60091044 + ... + 63679963.

It is an arithmetic number, because the mean of its divisors is an integer number (5239969394688).

Almost surely, 2^{222102121221220} is an apocalyptic number.

222102121221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102121221220 is an abundant number, since it is smaller than the sum of its proper divisors (280934940668828).

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

222102121221220 is a wasteful number, since it uses less digits than its factorization.

222102121221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123771169 (or 123771167 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222102121221220 its reverse (22122121201222), we get a palindrome (244224242422442).

The spelling of 222102121221220 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty".