312231222132213 has 16 divisors (see below), whose sum is σ = 427566814488000. Its totient is φ = 202525071636096.

The previous prime is 312231222132187. The next prime is 312231222132223.

It is a happy number.

312231222132213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 312231222132213 - 2¹² = 312231222128117 is a prime.

It is a super-3 number, since 3×312231222132213³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231222132223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15962088 + ... + 29652161.

It is an arithmetic number, because the mean of its divisors is an integer number (26722925905500).

Almost surely, 2^{312231222132213} is an apocalyptic number.

It is an amenable number.

312231222132213 is a deficient number, since it is larger than the sum of its proper divisors (115335592355787).

312231222132213 is a wasteful number, since it uses less digits than its factorization.

312231222132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45675956.

The product of its digits is 10368, while the sum is 30.

The spelling of 312231222132213 in words is "three hundred twelve trillion, two hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred thirteen".