12221202131223 has 16 divisors (see below), whose sum is σ = 17079660165120. Its totient is φ = 7758283113504.

The previous prime is 12221202131213. The next prime is 12221202131273. The reversal of 12221202131223 is 32213120212221.

It is not a de Polignac number, because 12221202131223 - 2¹⁴ = 12221202114839 is a prime.

It is a super-2 number, since 2×12221202131223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221202131193 and 12221202131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221202131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397112128 + ... + 397142901.

It is an arithmetic number, because the mean of its divisors is an integer number (1067478760320).

Almost surely, 2^{12221202131223} is an apocalyptic number.

12221202131223 is a deficient number, since it is larger than the sum of its proper divisors (4858458033897).

12221202131223 is a wasteful number, since it uses less digits than its factorization.

12221202131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794255278.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12221202131223 its reverse (32213120212221), we get a palindrome (44434322343444).

The spelling of 12221202131223 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred thirty-one thousand, two hundred twenty-three".