222101232220 has 48 divisors (see below), whose sum is σ = 551423759040. Its totient is φ = 73523165184.

The previous prime is 222101232181. The next prime is 222101232247. The reversal of 222101232220 is 22232101222.

It is a super-2 number, since 2×222101232220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 27348309 + ... + 27356428.

It is an arithmetic number, because the mean of its divisors is an integer number (11487994980).

Almost surely, 2^222101232220 is an apocalyptic number.

222101232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101232220 is an abundant number, since it is smaller than the sum of its proper divisors (329322526820).

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

222101232220 is a wasteful number, since it uses less digits than its factorization.

222101232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54704782 (or 54704780 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222101232220 its reverse (22232101222), we get a palindrome (244333333442).

The spelling of 222101232220 in words is "two hundred twenty-two billion, one hundred one million, two hundred thirty-two thousand, two hundred twenty".