285312211201 has 4 divisors (see below), whose sum is σ = 285504083712. Its totient is φ = 285120338692.

The previous prime is 285312211193. The next prime is 285312211231. The reversal of 285312211201 is 102112213582.

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 285312211201 - 2³ = 285312211193 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 285312211201.

It is not an unprimeable number, because it can be changed into a prime (285312211231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95934025 + ... + 95936998.

It is an arithmetic number, because the mean of its divisors is an integer number (71376020928).

Almost surely, 2^285312211201 is an apocalyptic number.

It is an amenable number.

285312211201 is a deficient number, since it is larger than the sum of its proper divisors (191872511).

285312211201 is a wasteful number, since it uses less digits than its factorization.

285312211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191872510.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 285312211201 its reverse (102112213582), we get a palindrome (387424424783).

The spelling of 285312211201 in words is "two hundred eighty-five billion, three hundred twelve million, two hundred eleven thousand, two hundred one".