222101210101220 has 24 divisors (see below), whose sum is σ = 466441363034304. Its totient is φ = 88834994169696.

The previous prime is 222101210101163. The next prime is 222101210101229. The reversal of 222101210101220 is 22101012101222.

It is not an unprimeable number, because it can be changed into a prime (222101210101229) 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, 342785174 + ... + 343432493.

It is an arithmetic number, because the mean of its divisors is an integer number (19435056793096).

Almost surely, 2^{222101210101220} is an apocalyptic number.

222101210101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101210101220 is an abundant number, since it is smaller than the sum of its proper divisors (244340152933084).

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

222101210101220 is a wasteful number, since it uses less digits than its factorization.

222101210101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686233859 (or 686233857 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222101210101220 its reverse (22101012101222), we get a palindrome (244202222202442).

The spelling of 222101210101220 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred ten million, one hundred one thousand, two hundred twenty".