2001222222002 has 8 divisors (see below), whose sum is σ = 3002020329756. Its totient is φ = 1000548778752.

The previous prime is 2001222221987. The next prime is 2001222222017. The reversal of 2001222222002 is 2002222221002.

It is an interprime number because it is at equal distance from previous prime (2001222221987) and next prime (2001222222017).

It can be written as a sum of positive squares in 2 ways, for example, as 1790193156361 + 211029065641 = 1337981^2 + 459379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 31125983 + ... + 31190210.

Almost surely, 2^{2001222222002} is an apocalyptic number.

2001222222002 is a deficient number, since it is larger than the sum of its proper divisors (1000798107754).

2001222222002 is a wasteful number, since it uses less digits than its factorization.

2001222222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62332252.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 2001222222002 its reverse (2002222221002), we get a palindrome (4003444443004).

The spelling of 2001222222002 in words is "two trillion, one billion, two hundred twenty-two million, two hundred twenty-two thousand, two".