213122230 has 8 divisors (see below), whose sum is σ = 383620032. Its totient is φ = 85248888.

The previous prime is 213122213. The next prime is 213122237. The reversal of 213122230 is 32221312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10656102 + ... + 10656121.

It is an arithmetic number, because the mean of its divisors is an integer number (47952504).

Almost surely, 2^213122230 is an apocalyptic number.

213122230 is a deficient number, since it is larger than the sum of its proper divisors (170497802).

213122230 is a wasteful number, since it uses less digits than its factorization.

213122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21312230.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213122230 is about 14598.7064495455. The cubic root of 213122230 is about 597.3234762697.

Adding to 213122230 its reverse (32221312), we get a palindrome (245343542).

The spelling of 213122230 in words is "two hundred thirteen million, one hundred twenty-two thousand, two hundred thirty".