222197660991600 has 1920 divisors, whose sum is σ = 924031372492800. Its totient is φ = 44455819161600.

The previous prime is 222197660991583. The next prime is 222197660991661. The reversal of 222197660991600 is 6199066791222.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 74990771719 + ... + 74990774681.

It is an arithmetic number, because the mean of its divisors is an integer number (481266339840).

Almost surely, 2^{222197660991600} is an apocalyptic number.

222197660991600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222197660991600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462015686246400).

222197660991600 is an abundant number, since it is smaller than the sum of its proper divisors (701833711501200).

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

222197660991600 is a wasteful number, since it uses less digits than its factorization.

222197660991600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 222197660991600 in words is "two hundred twenty-two trillion, one hundred ninety-seven billion, six hundred sixty million, nine hundred ninety-one thousand, six hundred".