12001122113 has 8 divisors (see below), whose sum is σ = 12417683880. Its totient is φ = 11584742400.

The previous prime is 12001122097. The next prime is 12001122143. The reversal of 12001122113 is 31122110021.

It can be written as a sum of positive squares in 4 ways, for example, as 81504784 + 11919617329 = 9028^2 + 109177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001122113 - 2⁴ = 12001122097 is a prime.

It is a super-2 number, since 2×12001122113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001122143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96131 + ... + 182327.

It is an arithmetic number, because the mean of its divisors is an integer number (1552210485).

Almost surely, 2^12001122113 is an apocalyptic number.

It is an amenable number.

12001122113 is a deficient number, since it is larger than the sum of its proper divisors (416561767).

12001122113 is an equidigital number, since it uses as much as digits as its factorization.

12001122113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91027.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12001122113 its reverse (31122110021), we get a palindrome (43123232134).

The spelling of 12001122113 in words is "twelve billion, one million, one hundred twenty-two thousand, one hundred thirteen".