10121001110197 has 4 divisors (see below), whose sum is σ = 10124959267276. Its totient is φ = 10117042953120.

The previous prime is 10121001110173. The next prime is 10121001110251. The reversal of 10121001110197 is 79101110012101.

10121001110197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7464211949041 + 2656789161156 = 2732071^2 + 1629966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121001110197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121001210197) 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, 1979074704 + ... + 1979079817.

It is an arithmetic number, because the mean of its divisors is an integer number (2531239816819).

Almost surely, 2^{10121001110197} is an apocalyptic number.

It is an amenable number.

10121001110197 is a deficient number, since it is larger than the sum of its proper divisors (3958157079).

10121001110197 is an equidigital number, since it uses as much as digits as its factorization.

10121001110197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958157078.

The product of its (nonzero) digits is 126, while the sum is 25.

Adding to 10121001110197 its reverse (79101110012101), we get a palindrome (89222111122298).

The spelling of 10121001110197 in words is "ten trillion, one hundred twenty-one billion, one million, one hundred ten thousand, one hundred ninety-seven".