312221021032211 has 16 divisors (see below), whose sum is σ = 323430920559360. Its totient is φ = 301040971486080.

The previous prime is 312221021032121. The next prime is 312221021032259. The reversal of 312221021032211 is 112230120122213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312221021032211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312221021032111) 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, 61693301 + ... + 66562041.

It is an arithmetic number, because the mean of its divisors is an integer number (20214432534960).

Almost surely, 2^{312221021032211} is an apocalyptic number.

312221021032211 is a deficient number, since it is larger than the sum of its proper divisors (11209899527149).

312221021032211 is a wasteful number, since it uses less digits than its factorization.

312221021032211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871806.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 312221021032211 its reverse (112230120122213), we get a palindrome (424451141154424).

The spelling of 312221021032211 in words is "three hundred twelve trillion, two hundred twenty-one billion, twenty-one million, thirty-two thousand, two hundred eleven".