97001120221 has 4 divisors (see below), whose sum is σ = 99367001244. Its totient is φ = 94635239200.

The previous prime is 97001120213. The next prime is 97001120243. The reversal of 97001120221 is 12202110079.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5552336196 + 91448784025 = 74514^2 + 302405^2 .

It is a cyclic number.

It is not a de Polignac number, because 97001120221 - 2³ = 97001120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97001120521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182940450 + ... + 1182940531.

It is an arithmetic number, because the mean of its divisors is an integer number (24841750311).

Almost surely, 2^97001120221 is an apocalyptic number.

It is an amenable number.

97001120221 is a deficient number, since it is larger than the sum of its proper divisors (2365881023).

97001120221 is a wasteful number, since it uses less digits than its factorization.

97001120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365881022.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 97001120221 in words is "ninety-seven billion, one million, one hundred twenty thousand, two hundred twenty-one".