20202101022401 has 2 divisors, whose sum is σ = 20202101022402. Its totient is φ = 20202101022400.

The previous prime is 20202101022379. The next prime is 20202101022451. The reversal of 20202101022401 is 10422010120202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14003694106801 + 6198406915600 = 3742151^2 + 2489660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202101022401 - 2²² = 20202096828097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202101022401.

It is not a weakly prime, because it can be changed into another prime (20202101022451) by changing a digit.

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 as a sum of consecutive naturals, namely, 10101050511200 + 10101050511201.

It is an arithmetic number, because the mean of its divisors is an integer number (10101050511201).

Almost surely, 2^{20202101022401} is an apocalyptic number.

It is an amenable number.

20202101022401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202101022401 is an equidigital number, since it uses as much as digits as its factorization.

20202101022401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20202101022401 its reverse (10422010120202), we get a palindrome (30624111142603).

The spelling of 20202101022401 in words is "twenty trillion, two hundred two billion, one hundred one million, twenty-two thousand, four hundred one".