12003222451 has 16 divisors (see below), whose sum is σ = 13674624768. Its totient is φ = 10429276000.

The previous prime is 12003222421. The next prime is 12003222461. The reversal of 12003222451 is 15422230021.

It is a happy number.

It is not a de Polignac number, because 12003222451 - 2¹⁵ = 12003189683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12003222421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 310920 + ... + 347386.

It is an arithmetic number, because the mean of its divisors is an integer number (854664048).

Almost surely, 2^12003222451 is an apocalyptic number.

12003222451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12003222451 is a deficient number, since it is larger than the sum of its proper divisors (1671402317).

12003222451 is a wasteful number, since it uses less digits than its factorization.

12003222451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37802.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12003222451 its reverse (15422230021), we get a palindrome (27425452472).

The spelling of 12003222451 in words is "twelve billion, three million, two hundred twenty-two thousand, four hundred fifty-one".