213213122 has 8 divisors (see below), whose sum is σ = 322808976. Its totient is φ = 105610132.

The previous prime is 213213089. The next prime is 213213127. The reversal of 213213122 is 221312312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213213122.

It is not an unprimeable number, because it can be changed into a prime (213213127) 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, 497948 + ... + 498375.

It is an arithmetic number, because the mean of its divisors is an integer number (40351122).

Almost surely, 2^213213122 is an apocalyptic number.

213213122 is a deficient number, since it is larger than the sum of its proper divisors (109595854).

213213122 is a wasteful number, since it uses less digits than its factorization.

213213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996432.

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

The square root of 213213122 is about 14601.8191332450. The cubic root of 213213122 is about 597.4083793621.

Adding to 213213122 its reverse (221312312), we get a palindrome (434525434).

The spelling of 213213122 in words is "two hundred thirteen million, two hundred thirteen thousand, one hundred twenty-two".