212412422 has 4 divisors (see below), whose sum is σ = 318618636. Its totient is φ = 106206210.

The previous prime is 212412413. The next prime is 212412451. The reversal of 212412422 is 224214212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212412394 and 212412403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53103104 + ... + 53103107.

It is an arithmetic number, because the mean of its divisors is an integer number (79654659).

Almost surely, 2^212412422 is an apocalyptic number.

212412422 is a deficient number, since it is larger than the sum of its proper divisors (106206214).

212412422 is a wasteful number, since it uses less digits than its factorization.

212412422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106206213.

The product of its digits is 512, while the sum is 20.

The square root of 212412422 is about 14574.3755269308. The cubic root of 212412422 is about 596.6596059767.

Adding to 212412422 its reverse (224214212), we get a palindrome (436626634).

The spelling of 212412422 in words is "two hundred twelve million, four hundred twelve thousand, four hundred twenty-two".