212423314422 has 48 divisors (see below), whose sum is σ = 467071602480. Its totient is φ = 64358099520.

The previous prime is 212423314399. The next prime is 212423314487. The reversal of 212423314422 is 224413324212.

It is a self number, because there is not a number n which added to its sum of digits gives 212423314422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4089888 + ... + 4141500.

It is an arithmetic number, because the mean of its divisors is an integer number (9730658385).

Almost surely, 2^212423314422 is an apocalyptic number.

212423314422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212423314422 is an abundant number, since it is smaller than the sum of its proper divisors (254648288058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212423314422 is a wasteful number, since it uses less digits than its factorization.

212423314422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57309 (or 57298 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

Adding to 212423314422 its reverse (224413324212), we get a palindrome (436836638634).

The spelling of 212423314422 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred fourteen thousand, four hundred twenty-two".