12122233234221 has 16 divisors (see below), whose sum is σ = 17634275392320. Its totient is φ = 7346001294720.

The previous prime is 12122233234201. The next prime is 12122233234231. The reversal of 12122233234221 is 12243233222121.

It is not a de Polignac number, because 12122233234221 - 2⁷ = 12122233234093 is a prime.

It is a super-3 number, since 3×12122233234221³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122233234201) 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, 19863000 + ... + 20464193.

It is an arithmetic number, because the mean of its divisors is an integer number (1102142212020).

Almost surely, 2^{12122233234221} is an apocalyptic number.

12122233234221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12122233234221 is a deficient number, since it is larger than the sum of its proper divisors (5512042158099).

12122233234221 is a wasteful number, since it uses less digits than its factorization.

12122233234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40336316.

The product of its digits is 13824, while the sum is 30.

Adding to 12122233234221 its reverse (12243233222121), we get a palindrome (24365466456342).

It can be divided in two parts, 1212223 and 3234221, that added together give a palindrome (4446444).

The spelling of 12122233234221 in words is "twelve trillion, one hundred twenty-two billion, two hundred thirty-three million, two hundred thirty-four thousand, two hundred twenty-one".