12252273331 has 4 divisors (see below), whose sum is σ = 12254555664. Its totient is φ = 12249991000.

The previous prime is 12252273287. The next prime is 12252273343. The reversal of 12252273331 is 13337225221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13337225221 = 67 ⋅199063063.

It is a cyclic number.

It is not a de Polignac number, because 12252273331 - 2²⁵ = 12218718899 is a prime.

It is a super-2 number, since 2×12252273331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12252273293 and 12252273302.

It is not an unprimeable number, because it can be changed into a prime (12252273361) 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 3 ways as a sum of consecutive naturals, for example, 1133095 + ... + 1143856.

It is an arithmetic number, because the mean of its divisors is an integer number (3063638916).

Almost surely, 2^12252273331 is an apocalyptic number.

12252273331 is a deficient number, since it is larger than the sum of its proper divisors (2282333).

12252273331 is an equidigital number, since it uses as much as digits as its factorization.

12252273331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282332.

The product of its digits is 15120, while the sum is 31.

Adding to 12252273331 its reverse (13337225221), we get a palindrome (25589498552).

The spelling of 12252273331 in words is "twelve billion, two hundred fifty-two million, two hundred seventy-three thousand, three hundred thirty-one".