312201122 has 16 divisors (see below), whose sum is σ = 493301760. Its totient is φ = 147778992.

The previous prime is 312201121. The next prime is 312201133. The reversal of 312201122 is 221102213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312201097 and 312201106.

It is not an unprimeable number, because it can be changed into a prime (312201121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85343 + ... + 88925.

It is an arithmetic number, because the mean of its divisors is an integer number (30831360).

Almost surely, 2^312201122 is an apocalyptic number.

312201122 is a deficient number, since it is larger than the sum of its proper divisors (181100638).

312201122 is a wasteful number, since it uses less digits than its factorization.

312201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 312201122 is about 17669.2139610114. The cubic root of 312201122 is about 678.3879938862.

Adding to 312201122 its reverse (221102213), we get a palindrome (533303335).

The spelling of 312201122 in words is "three hundred twelve million, two hundred one thousand, one hundred twenty-two".