312030222 has 16 divisors (see below), whose sum is σ = 713212032. Its totient is φ = 89151480.

The previous prime is 312030211. The next prime is 312030263. The reversal of 312030222 is 222030213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3714604 + ... + 3714687.

It is an arithmetic number, because the mean of its divisors is an integer number (44575752).

Almost surely, 2^312030222 is an apocalyptic number.

312030222 is an abundant number, since it is smaller than the sum of its proper divisors (401181810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312030222 is a wasteful number, since it uses less digits than its factorization.

312030222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7429303.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 312030222 is about 17664.3772038530. The cubic root of 312030222 is about 678.2641872958.

Adding to 312030222 its reverse (222030213), we get a palindrome (534060435).

Subtracting from 312030222 its reverse (222030213), we obtain a palindrome (90000009).

The spelling of 312030222 in words is "three hundred twelve million, thirty thousand, two hundred twenty-two".