80217122 has 4 divisors (see below), whose sum is σ = 120325686. Its totient is φ = 40108560.

The previous prime is 80217113. The next prime is 80217127. The reversal of 80217122 is 22171208.

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

It can be written as a sum of positive squares in only one way, i.e., 80120401 + 96721 = 8951^2 + 311^2 .

It is not an unprimeable number, because it can be changed into a prime (80217127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20054279 + ... + 20054282.

Almost surely, 2^80217122 is an apocalyptic number.

80217122 is a deficient number, since it is larger than the sum of its proper divisors (40108564).

80217122 is a wasteful number, since it uses less digits than its factorization.

80217122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40108563.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 80217122 is about 8956.4011745790. The cubic root of 80217122 is about 431.2763985240.

The spelling of 80217122 in words is "eighty million, two hundred seventeen thousand, one hundred twenty-two".