212040030444 has 24 divisors (see below), whose sum is σ = 539738259648. Its totient is φ = 64254554640.

The previous prime is 212040030443. The next prime is 212040030467. The reversal of 212040030444 is 444030040212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212040030443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803181802 + ... + 803182065.

It is an arithmetic number, because the mean of its divisors is an integer number (22489094152).

Almost surely, 2^212040030444 is an apocalyptic number.

It is an amenable number.

212040030444 is an abundant number, since it is smaller than the sum of its proper divisors (327698229204).

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

212040030444 is a wasteful number, since it uses less digits than its factorization.

212040030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606363885 (or 1606363883 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 212040030444 its reverse (444030040212), we get a palindrome (656070070656).

The spelling of 212040030444 in words is "two hundred twelve billion, forty million, thirty thousand, four hundred forty-four".