97121522242 has 4 divisors (see below), whose sum is σ = 145682283366. Its totient is φ = 48560761120.

The previous prime is 97121522231. The next prime is 97121522243. The reversal of 97121522242 is 24222512179.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 94846136841 + 2275385401 = 307971^2 + 47701^2 .

It is not an unprimeable number, because it can be changed into a prime (97121522243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24280380559 + ... + 24280380562.

Almost surely, 2^97121522242 is an apocalyptic number.

97121522242 is a deficient number, since it is larger than the sum of its proper divisors (48560761124).

97121522242 is a wasteful number, since it uses less digits than its factorization.

97121522242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48560761123.

The product of its digits is 40320, while the sum is 37.

The spelling of 97121522242 in words is "ninety-seven billion, one hundred twenty-one million, five hundred twenty-two thousand, two hundred forty-two".