10201110121 has 4 divisors (see below), whose sum is σ = 10644636672. Its totient is φ = 9757583572.

The previous prime is 10201110113. The next prime is 10201110131. The reversal of 10201110121 is 12101110201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10201110121 - 2³ = 10201110113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201110098 and 10201110107.

It is not an unprimeable number, because it can be changed into a prime (10201110131) 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, 221763241 + ... + 221763286.

It is an arithmetic number, because the mean of its divisors is an integer number (2661159168).

Almost surely, 2^10201110121 is an apocalyptic number.

It is an amenable number.

10201110121 is a deficient number, since it is larger than the sum of its proper divisors (443526551).

10201110121 is an equidigital number, since it uses as much as digits as its factorization.

10201110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443526550.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10201110121 its reverse (12101110201), we get a palindrome (22302220322).

The spelling of 10201110121 in words is "ten billion, two hundred one million, one hundred ten thousand, one hundred twenty-one".