102221021210873 has 2 divisors, whose sum is σ = 102221021210874. Its totient is φ = 102221021210872.

The previous prime is 102221021210863. The next prime is 102221021210921. The reversal of 102221021210873 is 378012120122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102216689991529 + 4331219344 = 10110227^2 + 65812^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221021210873 - 2¹⁰ = 102221021209849 is a prime.

It is not a weakly prime, because it can be changed into another prime (102221021210863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110510605436 + 51110510605437.

It is an arithmetic number, because the mean of its divisors is an integer number (51110510605437).

Almost surely, 2^{102221021210873} is an apocalyptic number.

It is an amenable number.

102221021210873 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221021210873 is an equidigital number, since it uses as much as digits as its factorization.

102221021210873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 102221021210873 in words is "one hundred two trillion, two hundred twenty-one billion, twenty-one million, two hundred ten thousand, eight hundred seventy-three".