313000221122 has 4 divisors (see below), whose sum is σ = 469500331686. Its totient is φ = 156500110560.

The previous prime is 313000221119. The next prime is 313000221133. The reversal of 313000221122 is 221122000313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221122000313 = 17 ⋅13007176489.

It can be written as a sum of positive squares in only one way, i.e., 219585022801 + 93415198321 = 468599^2 + 305639^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313000221122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78250055279 + ... + 78250055282.

Almost surely, 2^313000221122 is an apocalyptic number.

313000221122 is a deficient number, since it is larger than the sum of its proper divisors (156500110564).

313000221122 is a wasteful number, since it uses less digits than its factorization.

313000221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156500110563.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 313000221122 its reverse (221122000313), we get a palindrome (534122221435).

The spelling of 313000221122 in words is "three hundred thirteen billion, two hundred twenty-one thousand, one hundred twenty-two".