12213200312031 has 4 divisors (see below), whose sum is σ = 16284267082712. Its totient is φ = 8142133541352.

The previous prime is 12213200312017. The next prime is 12213200312041. The reversal of 12213200312031 is 13021300231221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12213200312031 - 2¹³ = 12213200303839 is a prime.

It is a super-2 number, since 2×12213200312031² (a number of 27 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 = 12213200311989 and 12213200312007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213200312011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035533385336 + ... + 2035533385341.

It is an arithmetic number, because the mean of its divisors is an integer number (4071066770678).

Almost surely, 2^{12213200312031} is an apocalyptic number.

12213200312031 is a deficient number, since it is larger than the sum of its proper divisors (4071066770681).

12213200312031 is an equidigital number, since it uses as much as digits as its factorization.

12213200312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071066770680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12213200312031 its reverse (13021300231221), we get a palindrome (25234500543252).

The spelling of 12213200312031 in words is "twelve trillion, two hundred thirteen billion, two hundred million, three hundred twelve thousand, thirty-one".