97222551947 has 4 divisors (see below), whose sum is σ = 98816364336. Its totient is φ = 95628739560.

The previous prime is 97222551941. The next prime is 97222551949. The reversal of 97222551947 is 74915522279.

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

It is a cyclic number.

It is not a de Polignac number, because 97222551947 - 2⁶ = 97222551883 is a prime.

It is a super-2 number, since 2×97222551947² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97222551941) 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 3 ways as a sum of consecutive naturals, for example, 796906103 + ... + 796906224.

It is an arithmetic number, because the mean of its divisors is an integer number (24704091084).

Almost surely, 2^97222551947 is an apocalyptic number.

97222551947 is a deficient number, since it is larger than the sum of its proper divisors (1593812389).

97222551947 is a wasteful number, since it uses less digits than its factorization.

97222551947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593812388.

The product of its digits is 3175200, while the sum is 53.

The spelling of 97222551947 in words is "ninety-seven billion, two hundred twenty-two million, five hundred fifty-one thousand, nine hundred forty-seven".