212351422 has 16 divisors (see below), whose sum is σ = 321358752. Its totient is φ = 105236320.

The previous prime is 212351413. The next prime is 212351441. The reversal of 212351422 is 224153212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212351393 and 212351402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121668 + ... + 123400.

It is an arithmetic number, because the mean of its divisors is an integer number (20084922).

Almost surely, 2^212351422 is an apocalyptic number.

212351422 is a deficient number, since it is larger than the sum of its proper divisors (109007330).

212351422 is a wasteful number, since it uses less digits than its factorization.

212351422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its digits is 960, while the sum is 22.

The square root of 212351422 is about 14572.2826626442. The cubic root of 212351422 is about 596.6024848344.

The spelling of 212351422 in words is "two hundred twelve million, three hundred fifty-one thousand, four hundred twenty-two".