212433104421 has 6 divisors (see below), whose sum is σ = 306847817510. Its totient is φ = 141622069608.

The previous prime is 212433104353. The next prime is 212433104431. The reversal of 212433104421 is 124401334212.

212433104421 is a `hidden beast` number, since 212 + 4 + 3 + 3 + 1 + 0 + 442 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 209828124900 + 2604979521 = 458070^2 + 51039^2 .

It is not a de Polignac number, because 212433104421 - 2¹⁰ = 212433103397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212433104431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11801839126 + ... + 11801839143.

Almost surely, 2^212433104421 is an apocalyptic number.

It is an amenable number.

212433104421 is a deficient number, since it is larger than the sum of its proper divisors (94414713089).

212433104421 is a wasteful number, since it uses less digits than its factorization.

212433104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23603678275 (or 23603678272 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 212433104421 its reverse (124401334212), we get a palindrome (336834438633).

The spelling of 212433104421 in words is "two hundred twelve billion, four hundred thirty-three million, one hundred four thousand, four hundred twenty-one".