80212211 has 4 divisors (see below), whose sum is σ = 81571800. Its totient is φ = 78852624.

The previous prime is 80212207. The next prime is 80212241. The reversal of 80212211 is 11221208.

It is a happy number.

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 80212211 - 2² = 80212207 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 80212211.

It is not an unprimeable number, because it can be changed into a prime (80212241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679706 + ... + 679823.

It is an arithmetic number, because the mean of its divisors is an integer number (20392950).

Almost surely, 2^80212211 is an apocalyptic number.

80212211 is a deficient number, since it is larger than the sum of its proper divisors (1359589).

80212211 is a wasteful number, since it uses less digits than its factorization.

80212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359588.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 80212211 is about 8956.1270089252. The cubic root of 80212211 is about 431.2675972375.

Adding to 80212211 its reverse (11221208), we get a palindrome (91433419).

The spelling of 80212211 in words is "eighty million, two hundred twelve thousand, two hundred eleven".