312232301222 has 4 divisors (see below), whose sum is σ = 468348451836. Its totient is φ = 156116150610.

The previous prime is 312232301219. The next prime is 312232301237. The reversal of 312232301222 is 222103232213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222103232213 = 2053 ⋅108184721.

It is a super-3 number, since 3×312232301222³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78058075304 + ... + 78058075307.

It is an arithmetic number, because the mean of its divisors is an integer number (117087112959).

Almost surely, 2^312232301222 is an apocalyptic number.

312232301222 is a deficient number, since it is larger than the sum of its proper divisors (156116150614).

312232301222 is a wasteful number, since it uses less digits than its factorization.

312232301222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156116150613.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 312232301222 its reverse (222103232213), we get a palindrome (534335533435).

The spelling of 312232301222 in words is "three hundred twelve billion, two hundred thirty-two million, three hundred one thousand, two hundred twenty-two".