223221112220 has 24 divisors (see below), whose sum is σ = 496338709104. Its totient is φ = 84036183296.

The previous prime is 223221112201. The next prime is 223221112243. The reversal of 223221112220 is 22211122322.

It is a super-3 number, since 3×223221112220³ (a number of 35 digits) contains 333 as substring.

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 = 223221112192 and 223221112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328266002 + ... + 328266681.

It is an arithmetic number, because the mean of its divisors is an integer number (20680779546).

Almost surely, 2^223221112220 is an apocalyptic number.

223221112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223221112220 is an abundant number, since it is smaller than the sum of its proper divisors (273117596884).

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

223221112220 is a wasteful number, since it uses less digits than its factorization.

223221112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656532709 (or 656532707 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 223221112220 its reverse (22211122322), we get a palindrome (245432234542).

The spelling of 223221112220 in words is "two hundred twenty-three billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty".