12231121101 has 16 divisors (see below), whose sum is σ = 16482312000. Its totient is φ = 8067207168.

The previous prime is 12231121051. The next prime is 12231121129. The reversal of 12231121101 is 10112113221.

It is not a de Polignac number, because 12231121101 - 2¹⁸ = 12230858957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231121151) 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, 222075 + ... + 271623.

It is an arithmetic number, because the mean of its divisors is an integer number (1030144500).

Almost surely, 2^12231121101 is an apocalyptic number.

It is an amenable number.

12231121101 is a deficient number, since it is larger than the sum of its proper divisors (4251190899).

12231121101 is a wasteful number, since it uses less digits than its factorization.

12231121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50428.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12231121101 its reverse (10112113221), we get a palindrome (22343234322).

The spelling of 12231121101 in words is "twelve billion, two hundred thirty-one million, one hundred twenty-one thousand, one hundred one".