102221212201 has 8 divisors (see below), whose sum is σ = 104187301704. Its totient is φ = 100256507520.

The previous prime is 102221212187. The next prime is 102221212297. The reversal of 102221212201 is 102212122201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59331216400 + 42889995801 = 243580^2 + 207099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102221212201 - 2⁷ = 102221212073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221212001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196540 + ... + 493021.

It is an arithmetic number, because the mean of its divisors is an integer number (13023412713).

Almost surely, 2^102221212201 is an apocalyptic number.

It is an amenable number.

102221212201 is a deficient number, since it is larger than the sum of its proper divisors (1966089503).

102221212201 is an equidigital number, since it uses as much as digits as its factorization.

102221212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692411.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102221212201 its reverse (102212122201), we get a palindrome (204433334402).

The spelling of 102221212201 in words is "one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred one".