12012110221 has 8 divisors (see below), whose sum is σ = 12231857088. Its totient is φ = 11793768000.

The previous prime is 12012110207. The next prime is 12012110261. The reversal of 12012110221 is 12201121021.

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 12012110221 - 2²⁷ = 11877892493 is a prime.

It is a super-2 number, since 2×12012110221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012110261) 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, 333895 + ... + 368116.

It is an arithmetic number, because the mean of its divisors is an integer number (1528982136).

Almost surely, 2^12012110221 is an apocalyptic number.

It is an amenable number.

12012110221 is a deficient number, since it is larger than the sum of its proper divisors (219746867).

12012110221 is an equidigital number, since it uses as much as digits as its factorization.

12012110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702323.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012110221 its reverse (12201121021), we get a palindrome (24213231242).

The spelling of 12012110221 in words is "twelve billion, twelve million, one hundred ten thousand, two hundred twenty-one".