313100222 has 4 divisors (see below), whose sum is σ = 469650336. Its totient is φ = 156550110.

The previous prime is 313100213. The next prime is 313100267. The reversal of 313100222 is 222001313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222001313 = 23 ⋅9652231.

It is a junction number, because it is equal to n+sod(n) for n = 313100197 and 313100206.

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, 78275054 + ... + 78275057.

It is an arithmetic number, because the mean of its divisors is an integer number (117412584).

Almost surely, 2^313100222 is an apocalyptic number.

313100222 is a deficient number, since it is larger than the sum of its proper divisors (156550114).

313100222 is a wasteful number, since it uses less digits than its factorization.

313100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156550113.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 313100222 is about 17694.6382274405. The cubic root of 313100222 is about 679.0385937953.

Adding to 313100222 its reverse (222001313), we get a palindrome (535101535).

The spelling of 313100222 in words is "three hundred thirteen million, one hundred thousand, two hundred twenty-two".