212201224424 has 64 divisors (see below), whose sum is σ = 485206396800. Its totient is φ = 84976625664.

The previous prime is 212201224421. The next prime is 212201224427. The reversal of 212201224424 is 424422102212.

It is an interprime number because it is at equal distance from previous prime (212201224421) and next prime (212201224427).

It is a junction number, because it is equal to n+sod(n) for n = 212201224393 and 212201224402.

It is not an unprimeable number, because it can be changed into a prime (212201224421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288337 + ... + 1443680.

It is an arithmetic number, because the mean of its divisors is an integer number (7581349950).

Almost surely, 2^212201224424 is an apocalyptic number.

It is an amenable number.

212201224424 is an abundant number, since it is smaller than the sum of its proper divisors (273005172376).

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

212201224424 is a wasteful number, since it uses less digits than its factorization.

212201224424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732122 (or 2732118 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 212201224424 its reverse (424422102212), we get a palindrome (636623326636).

The spelling of 212201224424 in words is "two hundred twelve billion, two hundred one million, two hundred twenty-four thousand, four hundred twenty-four".