222221002201220 has 48 divisors (see below), whose sum is σ = 509099248562688. Its totient is φ = 80805869794560.

The previous prime is 222221002201157. The next prime is 222221002201241. The reversal of 222221002201220 is 22102200122222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222221002201192 and 222221002201201.

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, 943412 + ... + 21102891.

It is an arithmetic number, because the mean of its divisors is an integer number (10606234345056).

Almost surely, 2^{222221002201220} is an apocalyptic number.

222221002201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221002201220 is an abundant number, since it is smaller than the sum of its proper divisors (286878246361468).

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

222221002201220 is a wasteful number, since it uses less digits than its factorization.

222221002201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22092140 (or 22092138 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222221002201220 its reverse (22102200122222), we get a palindrome (244323202323442).

The spelling of 222221002201220 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two million, two hundred one thousand, two hundred twenty".