212442100432 has 10 divisors (see below), whose sum is σ = 411606569618. Its totient is φ = 106221050208.

The previous prime is 212442100427. The next prime is 212442100447. The reversal of 212442100432 is 234001244212.

It can be written as a sum of positive squares in only one way, i.e., 177321841216 + 35120259216 = 421096^2 + 187404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212442100397 and 212442100406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6638815623 + ... + 6638815654.

Almost surely, 2^212442100432 is an apocalyptic number.

It is an amenable number.

212442100432 is a deficient number, since it is larger than the sum of its proper divisors (199164469186).

212442100432 is a wasteful number, since it uses less digits than its factorization.

212442100432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13277631285 (or 13277631279 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 212442100432 its reverse (234001244212), we get a palindrome (446443344644).

The spelling of 212442100432 in words is "two hundred twelve billion, four hundred forty-two million, one hundred thousand, four hundred thirty-two".