213112322 has 16 divisors (see below), whose sum is σ = 341236800. Its totient is φ = 99524880.

The previous prime is 213112283. The next prime is 213112351. The reversal of 213112322 is 223211312.

It is a self number, because there is not a number n which added to its sum of digits gives 213112322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36797 + ... + 42192.

It is an arithmetic number, because the mean of its divisors is an integer number (21327300).

Almost surely, 2^213112322 is an apocalyptic number.

213112322 is a deficient number, since it is larger than the sum of its proper divisors (128124478).

213112322 is a wasteful number, since it uses less digits than its factorization.

213112322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79081.

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

The square root of 213112322 is about 14598.3671004671. The cubic root of 213112322 is about 597.3142196525.

Adding to 213112322 its reverse (223211312), we get a palindrome (436323634).

The spelling of 213112322 in words is "two hundred thirteen million, one hundred twelve thousand, three hundred twenty-two".