312223212111 has 8 divisors (see below), whose sum is σ = 430652706480. Its totient is φ = 200971262912.

The previous prime is 312223212107. The next prime is 312223212143. The reversal of 312223212111 is 111212322213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312223212111 - 2² = 312223212107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794386190 + ... + 1794386363.

It is an arithmetic number, because the mean of its divisors is an integer number (53831588310).

Almost surely, 2^312223212111 is an apocalyptic number.

312223212111 is a deficient number, since it is larger than the sum of its proper divisors (118429494369).

312223212111 is a wasteful number, since it uses less digits than its factorization.

312223212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588772585.

The product of its digits is 288, while the sum is 21.

Adding to 312223212111 its reverse (111212322213), we get a palindrome (423435534324).

The spelling of 312223212111 in words is "three hundred twelve billion, two hundred twenty-three million, two hundred twelve thousand, one hundred eleven".