12042221412 has 72 divisors (see below), whose sum is σ = 31749205824. Its totient is φ = 3544185216.

The previous prime is 12042221393. The next prime is 12042221431. The reversal of 12042221412 is 21412224021.

It is an interprime number because it is at equal distance from previous prime (12042221393) and next prime (12042221431).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82443 + ... + 175730.

It is an arithmetic number, because the mean of its divisors is an integer number (440961192).

Almost surely, 2^12042221412 is an apocalyptic number.

12042221412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12042221412 is an abundant number, since it is smaller than the sum of its proper divisors (19706984412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12042221412 is a wasteful number, since it uses less digits than its factorization.

12042221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258229 (or 258214 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12042221412 its reverse (21412224021), we get a palindrome (33454445433).

The spelling of 12042221412 in words is "twelve billion, forty-two million, two hundred twenty-one thousand, four hundred twelve".