212440304024 has 32 divisors (see below), whose sum is σ = 454199296320. Its totient is φ = 92281760256.

The previous prime is 212440303987. The next prime is 212440304053. The reversal of 212440304024 is 420403044212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 212440303984 and 212440304002.

It is a congruent number.

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, 60077504 + ... + 60081039.

It is an arithmetic number, because the mean of its divisors is an integer number (14193728010).

Almost surely, 2^212440304024 is an apocalyptic number.

It is an amenable number.

212440304024 is an abundant number, since it is smaller than the sum of its proper divisors (241758992296).

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

212440304024 is a wasteful number, since it uses less digits than its factorization.

212440304024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120158579 (or 120158575 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 212440304024 its reverse (420403044212), we get a palindrome (632843348236).

The spelling of 212440304024 in words is "two hundred twelve billion, four hundred forty million, three hundred four thousand, twenty-four".