222881638000 has 320 divisors, whose sum is σ = 651815424000. Its totient is φ = 72057216000.

The previous prime is 222881637997. The next prime is 222881638019. The reversal of 222881638000 is 836188222.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22857126 + ... + 22866874.

It is an arithmetic number, because the mean of its divisors is an integer number (2036923200).

Almost surely, 2^222881638000 is an apocalyptic number.

222881638000 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 222881638000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325907712000).

222881638000 is an abundant number, since it is smaller than the sum of its proper divisors (428933786000).

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

222881638000 is a wasteful number, since it uses less digits than its factorization.

222881638000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873 (or 9857 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 222881638000 in words is "two hundred twenty-two billion, eight hundred eighty-one million, six hundred thirty-eight thousand".