212253332444 has 12 divisors (see below), whose sum is σ = 371706963600. Its totient is φ = 106051342848.

The previous prime is 212253332429. The next prime is 212253332477. The reversal of 212253332444 is 444233352212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18824504 + ... + 18835775.

It is an arithmetic number, because the mean of its divisors is an integer number (30975580300).

Almost surely, 2^212253332444 is an apocalyptic number.

It is an amenable number.

212253332444 is a deficient number, since it is larger than the sum of its proper divisors (159453631156).

212253332444 is a wasteful number, since it uses less digits than its factorization.

212253332444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37661692 (or 37661690 counting only the distinct ones).

The product of its digits is 138240, while the sum is 35.

Adding to 212253332444 its reverse (444233352212), we get a palindrome (656486684656).

The spelling of 212253332444 in words is "two hundred twelve billion, two hundred fifty-three million, three hundred thirty-two thousand, four hundred forty-four".