312210122 has 16 divisors (see below), whose sum is σ = 539127360. Its totient is φ = 132826848.

The previous prime is 312210113. The next prime is 312210137. The reversal of 312210122 is 221012213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 312210097 and 312210106.

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, 79472 + ... + 83307.

It is an arithmetic number, because the mean of its divisors is an integer number (33695460).

Almost surely, 2^312210122 is an apocalyptic number.

312210122 is a deficient number, since it is larger than the sum of its proper divisors (226917238).

312210122 is a wasteful number, since it uses less digits than its factorization.

312210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162925.

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

The square root of 312210122 is about 17669.4686394357. The cubic root of 312210122 is about 678.3945125829.

Adding to 312210122 its reverse (221012213), we get a palindrome (533222335).

The spelling of 312210122 in words is "three hundred twelve million, two hundred ten thousand, one hundred twenty-two".