10201002121091 has 2 divisors, whose sum is σ = 10201002121092. Its totient is φ = 10201002121090.

The previous prime is 10201002121043. The next prime is 10201002121159. The reversal of 10201002121091 is 19012120010201.

10201002121091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10201002121091 is a prime.

It is not a weakly prime, because it can be changed into another prime (10201002121031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100501060545 + 5100501060546.

It is an arithmetic number, because the mean of its divisors is an integer number (5100501060546).

Almost surely, 2^{10201002121091} is an apocalyptic number.

10201002121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201002121091 is an equidigital number, since it uses as much as digits as its factorization.

10201002121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 10201002121091 its reverse (19012120010201), we get a palindrome (29213122131292).

The spelling of 10201002121091 in words is "ten trillion, two hundred one billion, two million, one hundred twenty-one thousand, ninety-one".