10011010120121 has 2 divisors, whose sum is σ = 10011010120122. Its totient is φ = 10011010120120.

The previous prime is 10011010120079. The next prime is 10011010120129. The reversal of 10011010120121 is 12102101011001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9166331484025 + 844678636096 = 3027595^2 + 919064^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011010120121 - 2²⁶ = 10010943011257 is a prime.

It is not a weakly prime, because it can be changed into another prime (10011010120129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005505060060 + 5005505060061.

It is an arithmetic number, because the mean of its divisors is an integer number (5005505060061).

Almost surely, 2^{10011010120121} is an apocalyptic number.

It is an amenable number.

10011010120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011010120121 is an equidigital number, since it uses as much as digits as its factorization.

10011010120121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10011010120121 its reverse (12102101011001), we get a palindrome (22113111131122).

The spelling of 10011010120121 in words is "ten trillion, eleven billion, ten million, one hundred twenty thousand, one hundred twenty-one".