12121201113 has 8 divisors (see below), whose sum is σ = 18470401728. Its totient is φ = 6926400624.

The previous prime is 12121201109. The next prime is 12121201129. The reversal of 12121201113 is 31110212121.

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

It is not a de Polignac number, because 12121201113 - 2² = 12121201109 is a prime.

It is a super-3 number, since 3×12121201113³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12121201092 and 12121201101.

It is not an unprimeable number, because it can be changed into a prime (12121201163) 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, 288600006 + ... + 288600047.

It is an arithmetic number, because the mean of its divisors is an integer number (2308800216).

Almost surely, 2^12121201113 is an apocalyptic number.

It is an amenable number.

12121201113 is a deficient number, since it is larger than the sum of its proper divisors (6349200615).

12121201113 is an equidigital number, since it uses as much as digits as its factorization.

12121201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577200063.

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

Adding to 12121201113 its reverse (31110212121), we get a palindrome (43231413234).

The spelling of 12121201113 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, one hundred thirteen".