222221002012002 has 448 divisors, whose sum is σ = 647603662602240. Its totient is φ = 55678829500800.

The previous prime is 222221002011959. The next prime is 222221002012067. The reversal of 222221002012002 is 200210200122222.

222221002012002 is a `hidden beast` number, since 222 + 221 + 0 + 0 + 20 + 1 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 137457052 + ... + 139064312.

Almost surely, 2^{222221002012002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222221002012002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323801831301120).

222221002012002 is an abundant number, since it is smaller than the sum of its proper divisors (425382660590238).

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

222221002012002 is a wasteful number, since it uses less digits than its factorization.

222221002012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607361 (or 1607346 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222221002012002 its reverse (200210200122222), we get a palindrome (422431202134224).

The spelling of 222221002012002 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two million, twelve thousand, two".