212284801 has 4 divisors (see below), whose sum is σ = 212434992. Its totient is φ = 212134612.

The previous prime is 212284783. The next prime is 212284829. The reversal of 212284801 is 108482212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212284801 - 2⁷ = 212284673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212284801.

It is not an unprimeable number, because it can be changed into a prime (212284841) 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, 72955 + ... + 75808.

It is an arithmetic number, because the mean of its divisors is an integer number (53108748).

Almost surely, 2^212284801 is an apocalyptic number.

It is an amenable number.

212284801 is a deficient number, since it is larger than the sum of its proper divisors (150191).

212284801 is a wasteful number, since it uses less digits than its factorization.

212284801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150190.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 212284801 is about 14569.9966026077. The cubic root of 212284801 is about 596.5400876203.

It can be divided in two parts, 21 and 2284801, that added together give a palindrome (2284822).

The spelling of 212284801 in words is "two hundred twelve million, two hundred eighty-four thousand, eight hundred one".