212313422 has 8 divisors (see below), whose sum is σ = 318532296. Its totient is φ = 106135992.

The previous prime is 212313383. The next prime is 212313433. The reversal of 212313422 is 224313212.

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

It is a super-2 number, since 2×212313422² = 90153978322700168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212313394 and 212313403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12833 + ... + 24275.

It is an arithmetic number, because the mean of its divisors is an integer number (39816537).

Almost surely, 2^212313422 is an apocalyptic number.

212313422 is a deficient number, since it is larger than the sum of its proper divisors (106218874).

212313422 is a wasteful number, since it uses less digits than its factorization.

212313422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20722.

The product of its digits is 576, while the sum is 20.

The square root of 212313422 is about 14570.9787591637. The cubic root of 212313422 is about 596.5668956420.

Adding to 212313422 its reverse (224313212), we get a palindrome (436626634).

The spelling of 212313422 in words is "two hundred twelve million, three hundred thirteen thousand, four hundred twenty-two".