82221352 has 16 divisors (see below), whose sum is σ = 154352160. Its totient is φ = 41060784.

The previous prime is 82221319. The next prime is 82221431. The reversal of 82221352 is 25312228.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303 + ... + 12889.

It is an arithmetic number, because the mean of its divisors is an integer number (9647010).

Almost surely, 2^82221352 is an apocalyptic number.

It is an amenable number.

82221352 is a deficient number, since it is larger than the sum of its proper divisors (72130808).

82221352 is a wasteful number, since it uses less digits than its factorization.

82221352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12480 (or 12476 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 82221352 is about 9067.5990206890. The cubic root of 82221352 is about 434.8387159163.

The spelling of 82221352 in words is "eighty-two million, two hundred twenty-one thousand, three hundred fifty-two".