222999929856 has 264 divisors, whose sum is σ = 706426250400. Its totient is φ = 67192750080.

The previous prime is 222999929849. The next prime is 222999929881. The reversal of 222999929856 is 658929999222.

222999929856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (264).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 18140160 + ... + 18152448.

Almost surely, 2^222999929856 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 222999929856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353213125200).

222999929856 is an abundant number, since it is smaller than the sum of its proper divisors (483426320544).

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

222999929856 is a wasteful number, since it uses less digits than its factorization.

222999929856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12505 (or 12484 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 72.

The spelling of 222999929856 in words is "two hundred twenty-two billion, nine hundred ninety-nine million, nine hundred twenty-nine thousand, eight hundred fifty-six".