222221123013220 has 24 divisors (see below), whose sum is σ = 467045931852864. Its totient is φ = 88815768533856.

The previous prime is 222221123013193. The next prime is 222221123013221. The reversal of 222221123013220 is 22310321122222.

It is a super-4 number, since 4×222221123013220⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (222221123013221) 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, 4542516894 + ... + 4542565813.

It is an arithmetic number, because the mean of its divisors is an integer number (19460247160536).

Almost surely, 2^{222221123013220} is an apocalyptic number.

222221123013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221123013220 is an abundant number, since it is smaller than the sum of its proper divisors (244824808839644).

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

222221123013220 is a wasteful number, since it uses less digits than its factorization.

222221123013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085083939 (or 9085083937 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 222221123013220 its reverse (22310321122222), we get a palindrome (244531444135442).

The spelling of 222221123013220 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-three million, thirteen thousand, two hundred twenty".