12213210303031 has 4 divisors (see below), whose sum is σ = 12283806894552. Its totient is φ = 12142613711512.

The previous prime is 12213210303013. The next prime is 12213210303097. The reversal of 12213210303031 is 13030301231221.

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 12213210303031 - 2³⁵ = 12178850564663 is a prime.

It is a super-4 number, since 4×12213210303031⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213210302993 and 12213210303011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213210303001) 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, 35298295501 + ... + 35298295846.

It is an arithmetic number, because the mean of its divisors is an integer number (3070951723638).

Almost surely, 2^{12213210303031} is an apocalyptic number.

12213210303031 is a deficient number, since it is larger than the sum of its proper divisors (70596591521).

12213210303031 is an equidigital number, since it uses as much as digits as its factorization.

12213210303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70596591520.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12213210303031 its reverse (13030301231221), we get a palindrome (25243511534252).

The spelling of 12213210303031 in words is "twelve trillion, two hundred thirteen billion, two hundred ten million, three hundred three thousand, thirty-one".