212423245044 has 48 divisors (see below), whose sum is σ = 503296819200. Its totient is φ = 69720839136.

The previous prime is 212423245043. The next prime is 212423245093. The reversal of 212423245044 is 440542324212.

It is a junction number, because it is equal to n+sod(n) for n = 212423244996 and 212423245014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423245043) 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, 42637 + ... + 653195.

It is an arithmetic number, because the mean of its divisors is an integer number (10485350400).

Almost surely, 2^212423245044 is an apocalyptic number.

It is an amenable number.

212423245044 is an abundant number, since it is smaller than the sum of its proper divisors (290873574156).

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

212423245044 is a wasteful number, since it uses less digits than its factorization.

212423245044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611012 (or 611010 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 212423245044 its reverse (440542324212), we get a palindrome (652965569256).

The spelling of 212423245044 in words is "two hundred twelve billion, four hundred twenty-three million, two hundred forty-five thousand, forty-four".