97221331250 has 24 divisors (see below), whose sum is σ = 182278341252. Its totient is φ = 38888530000.

The previous prime is 97221331201. The next prime is 97221331253. The reversal of 97221331250 is 5213312279.

It can be written as a sum of positive squares in 6 ways, for example, as 16978871809 + 80242459441 = 130303^2 + 283271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97221331250.

It is not an unprimeable number, because it can be changed into a prime (97221331253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7771457 + ... + 7783956.

Almost surely, 2^97221331250 is an apocalyptic number.

97221331250 is a deficient number, since it is larger than the sum of its proper divisors (85057010002).

97221331250 is an equidigital number, since it uses as much as digits as its factorization.

97221331250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555440 (or 15555420 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 97221331250 in words is "ninety-seven billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred fifty".