222201210002004 has 72 divisors (see below), whose sum is σ = 570405986415720. Its totient is φ = 72923680899072.

The previous prime is 222201210001973. The next prime is 222201210002027. The reversal of 222201210002004 is 400200012102222.

It can be written as a sum of positive squares in 4 ways, for example, as 12407654002500 + 209793555999504 = 3522450^2 + 14484252^2 .

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 164174499 + ... + 165522410.

It is an arithmetic number, because the mean of its divisors is an integer number (7922305366885).

Almost surely, 2^{222201210002004} is an apocalyptic number.

It is an amenable number.

222201210002004 is an abundant number, since it is smaller than the sum of its proper divisors (348204776413716).

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

222201210002004 is a wasteful number, since it uses less digits than its factorization.

222201210002004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329697209 (or 329697204 counting only the distinct ones).

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

Adding to 222201210002004 its reverse (400200012102222), we get a palindrome (622401222104226).

The spelling of 222201210002004 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred ten million, two thousand, four".