10010100121121 has 4 divisors (see below), whose sum is σ = 10027448648772. Its totient is φ = 9992751593472.

The previous prime is 10010100121069. The next prime is 10010100121123. The reversal of 10010100121121 is 12112100101001.

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 9959704810000 + 50395311121 = 3155900^2 + 224489^2 .

It is a cyclic number.

It is not a de Polignac number, because 10010100121121 - 2²⁶ = 10010033012257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10010100121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8674262960 + ... + 8674264113.

It is an arithmetic number, because the mean of its divisors is an integer number (2506862162193).

Almost surely, 2^{10010100121121} is an apocalyptic number.

It is an amenable number.

10010100121121 is a deficient number, since it is larger than the sum of its proper divisors (17348527651).

10010100121121 is an equidigital number, since it uses as much as digits as its factorization.

10010100121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17348527650.

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

Adding to 10010100121121 its reverse (12112100101001), we get a palindrome (22122200222122).

The spelling of 10010100121121 in words is "ten trillion, ten billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-one".