20102202102001 has 4 divisors (see below), whose sum is σ = 20103007729572. Its totient is φ = 20101396474432.

The previous prime is 20102202101959. The next prime is 20102202102007. The reversal of 20102202102001 is 10020120220102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12968468582976 + 7133733519025 = 3601176^2 + 2670905^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102202102001 - 2⁷ = 20102202101873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102202102007) by changing a digit.

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, 402776356 + ... + 402826261.

It is an arithmetic number, because the mean of its divisors is an integer number (5025751932393).

Almost surely, 2^{20102202102001} is an apocalyptic number.

It is an amenable number.

20102202102001 is a deficient number, since it is larger than the sum of its proper divisors (805627571).

20102202102001 is an equidigital number, since it uses as much as digits as its factorization.

20102202102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805627570.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102202102001 its reverse (10020120220102), we get a palindrome (30122322322103).

The spelling of 20102202102001 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred two thousand, one".