12223100121 has 32 divisors (see below), whose sum is σ = 17306112000. Its totient is φ = 7652180160.

The previous prime is 12223100117. The next prime is 12223100189. The reversal of 12223100121 is 12100132221.

It is not a de Polignac number, because 12223100121 - 2² = 12223100117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12223100121.

It is not an unprimeable number, because it can be changed into a prime (12223100101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5154066 + ... + 5156436.

It is an arithmetic number, because the mean of its divisors is an integer number (540816000).

Almost surely, 2^12223100121 is an apocalyptic number.

It is an amenable number.

12223100121 is a deficient number, since it is larger than the sum of its proper divisors (5083011879).

12223100121 is a wasteful number, since it uses less digits than its factorization.

12223100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12223100121 its reverse (12100132221), we get a palindrome (24323232342).

The spelling of 12223100121 in words is "twelve billion, two hundred twenty-three million, one hundred thousand, one hundred twenty-one".