312250144221 has 24 divisors (see below), whose sum is σ = 474073254720. Its totient is φ = 197662614336.

The previous prime is 312250144177. The next prime is 312250144249. The reversal of 312250144221 is 122441052213.

312250144221 is a `hidden beast` number, since 3 + 1 + 225 + 0 + 14 + 422 + 1 = 666.

It is not a de Polignac number, because 312250144221 - 2¹⁴ = 312250127837 is a prime.

It is a super-3 number, since 3×312250144221³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312250134221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5476951 + ... + 5533668.

It is an arithmetic number, because the mean of its divisors is an integer number (19753052280).

Almost surely, 2^312250144221 is an apocalyptic number.

It is an amenable number.

312250144221 is a deficient number, since it is larger than the sum of its proper divisors (161823110499).

312250144221 is a wasteful number, since it uses less digits than its factorization.

312250144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010785 (or 11010782 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 312250144221 its reverse (122441052213), we get a palindrome (434691196434).

The spelling of 312250144221 in words is "three hundred twelve billion, two hundred fifty million, one hundred forty-four thousand, two hundred twenty-one".