222222201001002 has 128 divisors (see below), whose sum is σ = 506780963884800. Its totient is φ = 72141097174272.

The previous prime is 222222201000997. The next prime is 222222201001043. The reversal of 222222201001002 is 200100102222222.

222222201001002 is a `hidden beast` number, since 22 + 222 + 220 + 100 + 100 + 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4168541524 + ... + 4168594832.

It is an arithmetic number, because the mean of its divisors is an integer number (3959226280350).

Almost surely, 2^{222222201001002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222201001002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253390481942400).

222222201001002 is an abundant number, since it is smaller than the sum of its proper divisors (284558762883798).

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

222222201001002 is a wasteful number, since it uses less digits than its factorization.

222222201001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58549 (or 58543 counting only the distinct ones).

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

Adding to 222222201001002 its reverse (200100102222222), we get a palindrome (422322303223224).

The spelling of 222222201001002 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred one million, one thousand, two".