20100001222002 has 64 divisors (see below), whose sum is σ = 45601837424640. Its totient is φ = 5855125953600.

The previous prime is 20100001222001. The next prime is 20100001222009. The reversal of 20100001222002 is 20022210000102.

It is not an unprimeable number, because it can be changed into a prime (20100001222001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2430024 + ... + 6790067.

It is an arithmetic number, because the mean of its divisors is an integer number (712528709760).

Almost surely, 2^{20100001222002} is an apocalyptic number.

20100001222002 is an abundant number, since it is smaller than the sum of its proper divisors (25501836202638).

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

20100001222002 is a wasteful number, since it uses less digits than its factorization.

20100001222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221599.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20100001222002 its reverse (20022210000102), we get a palindrome (40122211222104).

The spelling of 20100001222002 in words is "twenty trillion, one hundred billion, one million, two hundred twenty-two thousand, two".