97221338488 has 64 divisors (see below), whose sum is σ = 203240340000. Its totient is φ = 43328581632.

The previous prime is 97221338483. The next prime is 97221338497. The reversal of 97221338488 is 88483312279.

It is a happy number.

It is a super-2 number, since 2×97221338488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97221338483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12008970 + ... + 12017062.

Almost surely, 2^97221338488 is an apocalyptic number.

It is an amenable number.

97221338488 is an abundant number, since it is smaller than the sum of its proper divisors (106019001512).

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

97221338488 is a wasteful number, since it uses less digits than its factorization.

97221338488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12784 (or 12780 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 97221338488 in words is "ninety-seven billion, two hundred twenty-one million, three hundred thirty-eight thousand, four hundred eighty-eight".