11010121121 has 16 divisors (see below), whose sum is σ = 12153523200. Its totient is φ = 9932969088.

The previous prime is 11010121103. The next prime is 11010121127. The reversal of 11010121121 is 12112101011.

It is a cyclic number.

It is not a de Polignac number, because 11010121121 - 2¹⁰ = 11010120097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11010121127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96641 + ... + 177086.

It is an arithmetic number, because the mean of its divisors is an integer number (759595200).

Almost surely, 2^11010121121 is an apocalyptic number.

It is an amenable number.

11010121121 is a deficient number, since it is larger than the sum of its proper divisors (1143402079).

11010121121 is a wasteful number, since it uses less digits than its factorization.

11010121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273848.

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

Adding to 11010121121 its reverse (12112101011), we get a palindrome (23122222132).

The spelling of 11010121121 in words is "eleven billion, ten million, one hundred twenty-one thousand, one hundred twenty-one".