82250221320 has 96 divisors (see below), whose sum is σ = 269016036120. Its totient is φ = 21793674240.

The previous prime is 82250221307. The next prime is 82250221337. The reversal of 82250221320 is 2312205228.

82250221320 is a `hidden beast` number, since 8 + 22 + 502 + 2 + 132 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 77610159396 + 4640061924 = 278586^2 + 68118^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 671101 + ... + 784140.

Almost surely, 2^82250221320 is an apocalyptic number.

It is an amenable number.

82250221320 is an abundant number, since it is smaller than the sum of its proper divisors (186765814800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82250221320 is a wasteful number, since it uses less digits than its factorization.

82250221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455415 (or 1455408 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 82250221320 its reverse (2312205228), we get a palindrome (84562426548).

The spelling of 82250221320 in words is "eighty-two billion, two hundred fifty million, two hundred twenty-one thousand, three hundred twenty".