92821222010221 has 4 divisors (see below), whose sum is σ = 92821299848892. Its totient is φ = 92821144171552.

The previous prime is 92821222010203. The next prime is 92821222010227. The reversal of 92821222010221 is 12201022212829.

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 2 ways, for example, as 23551473116196 + 69269748894025 = 4852986^2 + 8322845^2 .

It is a cyclic number.

It is not a de Polignac number, because 92821222010221 - 2¹¹ = 92821222008173 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 (92821222010227) 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, 37102336 + ... + 39525001.

It is an arithmetic number, because the mean of its divisors is an integer number (23205324962223).

Almost surely, 2^{92821222010221} is an apocalyptic number.

It is an amenable number.

92821222010221 is a deficient number, since it is larger than the sum of its proper divisors (77838671).

92821222010221 is a wasteful number, since it uses less digits than its factorization.

92821222010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77838670.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 92821222010221 in words is "ninety-two trillion, eight hundred twenty-one billion, two hundred twenty-two million, ten thousand, two hundred twenty-one".