97212970216 has 8 divisors (see below), whose sum is σ = 182274319170. Its totient is φ = 48606485104.

The previous prime is 97212970213. The next prime is 97212970241. The reversal of 97212970216 is 61207921279.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 96093800100 + 1119170116 = 309990^2 + 33454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (97212970213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075810631 + ... + 6075810646.

Almost surely, 2^97212970216 is an apocalyptic number.

It is an amenable number.

97212970216 is a deficient number, since it is larger than the sum of its proper divisors (85061348954).

97212970216 is a wasteful number, since it uses less digits than its factorization.

97212970216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151621283 (or 12151621279 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 97212970216 in words is "ninety-seven billion, two hundred twelve million, nine hundred seventy thousand, two hundred sixteen".