212223314424 has 128 divisors (see below), whose sum is σ = 580980314880. Its totient is φ = 64067328000.

The previous prime is 212223314399. The next prime is 212223314497. The reversal of 212223314424 is 424413322212.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212223314391 and 212223314400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148719199 + ... + 148720625.

It is an arithmetic number, because the mean of its divisors is an integer number (4538908710).

Almost surely, 2^212223314424 is an apocalyptic number.

212223314424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212223314424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290490157440).

212223314424 is an abundant number, since it is smaller than the sum of its proper divisors (368757000456).

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

212223314424 is a wasteful number, since it uses less digits than its factorization.

212223314424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181 (or 3177 counting only the distinct ones).

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

Adding to 212223314424 its reverse (424413322212), we get a palindrome (636636636636).

The spelling of 212223314424 in words is "two hundred twelve billion, two hundred twenty-three million, three hundred fourteen thousand, four hundred twenty-four".