13223222221031 has 4 divisors (see below), whose sum is σ = 13439996355864. Its totient is φ = 13006448086200.

The previous prime is 13223222220977. The next prime is 13223222221039. The reversal of 13223222221031 is 13012222232231.

13223222221031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13223222221031 - 2¹⁸ = 13223221958887 is a prime.

It is a super-2 number, since 2×13223222221031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223222221039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108387067325 + ... + 108387067446.

It is an arithmetic number, because the mean of its divisors is an integer number (3359999088966).

Almost surely, 2^{13223222221031} is an apocalyptic number.

13223222221031 is a deficient number, since it is larger than the sum of its proper divisors (216774134833).

13223222221031 is an equidigital number, since it uses as much as digits as its factorization.

13223222221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216774134832.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13223222221031 its reverse (13012222232231), we get a palindrome (26235444453262).

The spelling of 13223222221031 in words is "thirteen trillion, two hundred twenty-three billion, two hundred twenty-two million, two hundred twenty-one thousand, thirty-one".