212112463 has 4 divisors (see below), whose sum is σ = 221334768. Its totient is φ = 202890160.

The previous prime is 212112431. The next prime is 212112469. The reversal of 212112463 is 364211212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212112463 - 2⁵ = 212112431 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 (212112469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611118 + ... + 4611163.

It is an arithmetic number, because the mean of its divisors is an integer number (55333692).

Almost surely, 2^212112463 is an apocalyptic number.

212112463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212112463 is a deficient number, since it is larger than the sum of its proper divisors (9222305).

212112463 is an equidigital number, since it uses as much as digits as its factorization.

212112463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9222304.

The product of its digits is 576, while the sum is 22.

The square root of 212112463 is about 14564.0812617892. The cubic root of 212112463 is about 596.3786152996.

Adding to 212112463 its reverse (364211212), we get a palindrome (576323675).

The spelling of 212112463 in words is "two hundred twelve million, one hundred twelve thousand, four hundred sixty-three".