12021223113 has 12 divisors (see below), whose sum is σ = 17365012080. Its totient is φ = 8013676536.

The previous prime is 12021223063. The next prime is 12021223117. The reversal of 12021223113 is 31132212021.

It is not a de Polignac number, because 12021223113 - 2²¹ = 12019125961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021223117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195898 + ... + 249836.

It is an arithmetic number, because the mean of its divisors is an integer number (1447084340).

Almost surely, 2^12021223113 is an apocalyptic number.

It is an amenable number.

12021223113 is a deficient number, since it is larger than the sum of its proper divisors (5343788967).

12021223113 is a wasteful number, since it uses less digits than its factorization.

12021223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78708 (or 78705 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12021223113 its reverse (31132212021), we get a palindrome (43153435134).

The spelling of 12021223113 in words is "twelve billion, twenty-one million, two hundred twenty-three thousand, one hundred thirteen".