222120211200220 has 12 divisors (see below), whose sum is σ = 466452443520504. Its totient is φ = 88848084480080.

The previous prime is 222120211200157. The next prime is 222120211200221. The reversal of 222120211200220 is 22002112021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120211200221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553005279986 + ... + 5553005280025.

It is an arithmetic number, because the mean of its divisors is an integer number (38871036960042).

Almost surely, 2^{222120211200220} is an apocalyptic number.

222120211200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120211200220 is an abundant number, since it is smaller than the sum of its proper divisors (244332232320284).

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

222120211200220 is a wasteful number, since it uses less digits than its factorization.

222120211200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106010560020 (or 11106010560018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222120211200220 its reverse (22002112021222), we get a palindrome (244122323221442).

The spelling of 222120211200220 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred eleven million, two hundred thousand, two hundred twenty".