82122223 has 4 divisors (see below), whose sum is σ = 86952960. Its totient is φ = 77291488.

The previous prime is 82122163. The next prime is 82122233. The reversal of 82122223 is 32222128.

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 82122223 - 2¹³ = 82114031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82122194 and 82122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82122233) 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, 2415343 + ... + 2415376.

It is an arithmetic number, because the mean of its divisors is an integer number (21738240).

Almost surely, 2^82122223 is an apocalyptic number.

82122223 is a deficient number, since it is larger than the sum of its proper divisors (4830737).

82122223 is a wasteful number, since it uses less digits than its factorization.

82122223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830736.

The product of its digits is 768, while the sum is 22.

The square root of 82122223 is about 9062.1312614638. The cubic root of 82122223 is about 434.6638932753.

The spelling of 82122223 in words is "eighty-two million, one hundred twenty-two thousand, two hundred twenty-three".