12122033421 has 16 divisors (see below), whose sum is σ = 17127576000. Its totient is φ = 7604633088.

The previous prime is 12122033381. The next prime is 12122033467. The reversal of 12122033421 is 12433022121.

It is not a de Polignac number, because 12122033421 - 2¹⁰ = 12122032397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122033471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705156 + ... + 722141.

It is an arithmetic number, because the mean of its divisors is an integer number (1070473500).

Almost surely, 2^12122033421 is an apocalyptic number.

It is an amenable number.

12122033421 is a deficient number, since it is larger than the sum of its proper divisors (5005542579).

12122033421 is a wasteful number, since it uses less digits than its factorization.

12122033421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427468.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12122033421 its reverse (12433022121), we get a palindrome (24555055542).

The spelling of 12122033421 in words is "twelve billion, one hundred twenty-two million, thirty-three thousand, four hundred twenty-one".