97129221320 has 64 divisors (see below), whose sum is σ = 230140872000. Its totient is φ = 36791186688.

The previous prime is 97129221289. The next prime is 97129221361. The reversal of 97129221320 is 2312292179.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842854 + ... + 1894826.

It is an arithmetic number, because the mean of its divisors is an integer number (3595951125).

Almost surely, 2^97129221320 is an apocalyptic number.

It is an amenable number.

97129221320 is an abundant number, since it is smaller than the sum of its proper divisors (133011650680).

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

97129221320 is a wasteful number, since it uses less digits than its factorization.

97129221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54462 (or 54458 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 97129221320 in words is "ninety-seven billion, one hundred twenty-nine million, two hundred twenty-one thousand, three hundred twenty".