20002001010122 has 16 divisors (see below), whose sum is σ = 30573920816712. Its totient is φ = 9810753638400.

The previous prime is 20002001010097. The next prime is 20002001010143. The reversal of 20002001010122 is 22101010020002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12037645359961 + 7964355650161 = 3469531^2 + 2822119^2 .

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 7 ways as a sum of consecutive naturals, for example, 14216879 + ... + 15560322.

Almost surely, 2^{20002001010122} is an apocalyptic number.

20002001010122 is a deficient number, since it is larger than the sum of its proper divisors (10571919806590).

20002001010122 is a wasteful number, since it uses less digits than its factorization.

20002001010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29783593.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002001010122 its reverse (22101010020002), we get a palindrome (42103011030124).

The spelling of 20002001010122 in words is "twenty trillion, two billion, one million, ten thousand, one hundred twenty-two".