12121022113 has 16 divisors (see below), whose sum is σ = 12433913856. Its totient is φ = 11813195520.

The previous prime is 12121022101. The next prime is 12121022119. The reversal of 12121022113 is 31122012121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12121022113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121022119) 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, 1904745 + ... + 1911097.

It is an arithmetic number, because the mean of its divisors is an integer number (777119616).

Almost surely, 2^12121022113 is an apocalyptic number.

It is an amenable number.

12121022113 is a deficient number, since it is larger than the sum of its proper divisors (312891743).

12121022113 is a wasteful number, since it uses less digits than its factorization.

12121022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12121022113 its reverse (31122012121), we get a palindrome (43243034234).

The spelling of 12121022113 in words is "twelve billion, one hundred twenty-one million, twenty-two thousand, one hundred thirteen".