222221101210220 has 48 divisors (see below), whose sum is σ = 556518931734528. Its totient is φ = 72877479153600.

The previous prime is 222221101210177. The next prime is 222221101210279. The reversal of 222221101210220 is 22012101122222.

222221101210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 222221101210192 and 222221101210201.

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, 34506378956 + ... + 34506385395.

It is an arithmetic number, because the mean of its divisors is an integer number (11594144411136).

Almost surely, 2^{222221101210220} is an apocalyptic number.

222221101210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221101210220 is an abundant number, since it is smaller than the sum of its proper divisors (334297830524308).

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

222221101210220 is a wasteful number, since it uses less digits than its factorization.

222221101210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69012764390 (or 69012764388 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221101210220 its reverse (22012101122222), we get a palindrome (244233202332442).

The spelling of 222221101210220 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred one million, two hundred ten thousand, two hundred twenty".