222222211002002 has 16 divisors (see below), whose sum is σ = 344914013770200. Its totient is φ = 107252794078080.

The previous prime is 222222211001983. The next prime is 222222211002049. The reversal of 222222211002002 is 200200112222222.

It can be written as a sum of positive squares in 4 ways, for example, as 111161195976601 + 111061015025401 = 10543301^2 + 10538549^2 .

It is a super-2 number, since 2×222222211002002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480016499 + ... + 480479222.

Almost surely, 2^{222222211002002} is an apocalyptic number.

222222211002002 is a deficient number, since it is larger than the sum of its proper divisors (122691802768198).

222222211002002 is a wasteful number, since it uses less digits than its factorization.

222222211002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960499741.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222222211002002 its reverse (200200112222222), we get a palindrome (422422323224224).

The spelling of 222222211002002 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred eleven million, two thousand, two".