10110201221 has 2 divisors, whose sum is σ = 10110201222. Its totient is φ = 10110201220.

The previous prime is 10110201217. The next prime is 10110201229. The reversal of 10110201221 is 12210201101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6611478721 + 3498722500 = 81311^2 + 59150^2 .

It is a cyclic number.

It is not a de Polignac number, because 10110201221 - 2² = 10110201217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10110201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055100610 + 5055100611.

It is an arithmetic number, because the mean of its divisors is an integer number (5055100611).

Almost surely, 2^10110201221 is an apocalyptic number.

It is an amenable number.

10110201221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10110201221 is an equidigital number, since it uses as much as digits as its factorization.

10110201221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10110201221 its reverse (12210201101), we get a palindrome (22320402322).

The spelling of 10110201221 in words is "ten billion, one hundred ten million, two hundred one thousand, two hundred twenty-one".