102221120221001 has 2 divisors, whose sum is σ = 102221120221002. Its totient is φ = 102221120221000.

The previous prime is 102221120220977. The next prime is 102221120221043. The reversal of 102221120221001 is 100122021122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81840048809401 + 20381071411600 = 9046549^2 + 4514540^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221120221001 - 2²² = 102221116026697 is a prime.

It is not a weakly prime, because it can be changed into another prime (102221120227001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110560110500 + 51110560110501.

It is an arithmetic number, because the mean of its divisors is an integer number (51110560110501).

Almost surely, 2^{102221120221001} is an apocalyptic number.

It is an amenable number.

102221120221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221120221001 is an equidigital number, since it uses as much as digits as its factorization.

102221120221001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102221120221001 its reverse (100122021122201), we get a palindrome (202343141343202).

The spelling of 102221120221001 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, one".