20102120012201 has 2 divisors, whose sum is σ = 20102120012202. Its totient is φ = 20102120012200.

The previous prime is 20102120012171. The next prime is 20102120012231. The reversal of 20102120012201 is 10221002120102.

It is a balanced prime because it is at equal distance from previous prime (20102120012171) and next prime (20102120012231).

It can be written as a sum of positive squares in only one way, i.e., 20060545210000 + 41574802201 = 4478900^2 + 203899^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102120012201 - 2²⁶ = 20102052903337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102120012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051060006100 + 10051060006101.

It is an arithmetic number, because the mean of its divisors is an integer number (10051060006101).

Almost surely, 2^{20102120012201} is an apocalyptic number.

It is an amenable number.

20102120012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102120012201 is an equidigital number, since it uses as much as digits as its factorization.

20102120012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102120012201 its reverse (10221002120102), we get a palindrome (30323122132303).

The spelling of 20102120012201 in words is "twenty trillion, one hundred two billion, one hundred twenty million, twelve thousand, two hundred one".