222321202212220 has 24 divisors (see below), whose sum is σ = 467234489638224. Its totient is φ = 88859916124416.

The previous prime is 222321202212217. The next prime is 222321202212229. The reversal of 222321202212220 is 22212202123222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222321202212229) 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, 4285270942 + ... + 4285322821.

It is an arithmetic number, because the mean of its divisors is an integer number (19468103734926).

Almost surely, 2^{222321202212220} is an apocalyptic number.

222321202212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222321202212220 is an abundant number, since it is smaller than the sum of its proper divisors (244913287426004).

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

222321202212220 is a wasteful number, since it uses less digits than its factorization.

222321202212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570595069 (or 8570595067 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 222321202212220 its reverse (22212202123222), we get a palindrome (244533404335442).

The spelling of 222321202212220 in words is "two hundred twenty-two trillion, three hundred twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred twenty".