212224410340 has 24 divisors (see below), whose sum is σ = 445681471032. Its totient is φ = 84887819520.

The previous prime is 212224410337. The next prime is 212224410367. The reversal of 212224410340 is 43014422212.

It can be written as a sum of positive squares in 4 ways, for example, as 1559934016 + 210664476324 = 39496^2 + 458982^2 .

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, 1047720 + ... + 1233760.

It is an arithmetic number, because the mean of its divisors is an integer number (18570061293).

Almost surely, 2^212224410340 is an apocalyptic number.

212224410340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212224410340 is an abundant number, since it is smaller than the sum of its proper divisors (233457060692).

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

212224410340 is a wasteful number, since it uses less digits than its factorization.

212224410340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243087 (or 243085 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 212224410340 its reverse (43014422212), we get a palindrome (255238832552).

The spelling of 212224410340 in words is "two hundred twelve billion, two hundred twenty-four million, four hundred ten thousand, three hundred forty".