213065222 has 4 divisors (see below), whose sum is σ = 319597836. Its totient is φ = 106532610.

The previous prime is 213065213. The next prime is 213065227. The reversal of 213065222 is 222560312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213065227) by changing a digit.

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 as a sum of consecutive naturals, namely, 53266304 + ... + 53266307.

It is an arithmetic number, because the mean of its divisors is an integer number (79899459).

Almost surely, 2^213065222 is an apocalyptic number.

213065222 is a deficient number, since it is larger than the sum of its proper divisors (106532614).

213065222 is a wasteful number, since it uses less digits than its factorization.

213065222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106532613.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 213065222 is about 14596.7538172020. The cubic root of 213065222 is about 597.2702122291.

The spelling of 213065222 in words is "two hundred thirteen million, sixty-five thousand, two hundred twenty-two".