10121122201 has 4 divisors (see below), whose sum is σ = 10147140900. Its totient is φ = 10095103504.

The previous prime is 10121122183. The next prime is 10121122213. The reversal of 10121122201 is 10222112101.

10121122201 is digitally balanced in base 3, 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 5935161600 + 4185960601 = 77040^2 + 64699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121122201 is a prime.

It is a super-2 number, since 2×10121122201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121122001) 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, 13008766 + ... + 13009543.

It is an arithmetic number, because the mean of its divisors is an integer number (2536785225).

Almost surely, 2^10121122201 is an apocalyptic number.

It is an amenable number.

10121122201 is a deficient number, since it is larger than the sum of its proper divisors (26018699).

10121122201 is an equidigital number, since it uses as much as digits as its factorization.

10121122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26018698.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121122201 its reverse (10222112101), we get a palindrome (20343234302).

The spelling of 10121122201 in words is "ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".