222646409216 has 288 divisors, whose sum is σ = 585934352640. Its totient is φ = 82158796800.

The previous prime is 222646409191. The next prime is 222646409243. The reversal of 222646409216 is 612904646222.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56926301 + ... + 56930211.

It is an arithmetic number, because the mean of its divisors is an integer number (2034494280).

Almost surely, 2^222646409216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222646409216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292967176320).

222646409216 is an abundant number, since it is smaller than the sum of its proper divisors (363287943424).

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

222646409216 is a wasteful number, since it uses less digits than its factorization.

222646409216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 222646409216 in words is "two hundred twenty-two billion, six hundred forty-six million, four hundred nine thousand, two hundred sixteen".