201102222020221 has 2 divisors, whose sum is σ = 201102222020222. Its totient is φ = 201102222020220.

The previous prime is 201102222020201. The next prime is 201102222020237. The reversal of 201102222020221 is 122020222201102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155662677955225 + 45439544064996 = 12476485^2 + 6740886^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102222020221 - 2³¹ = 201100074536573 is a prime.

It is a super-3 number, since 3×201102222020221³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201102222020201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551111010110 + 100551111010111.

It is an arithmetic number, because the mean of its divisors is an integer number (100551111010111).

Almost surely, 2^{201102222020221} is an apocalyptic number.

It is an amenable number.

201102222020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201102222020221 is an equidigital number, since it uses as much as digits as its factorization.

201102222020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201102222020221 its reverse (122020222201102), we get a palindrome (323122444221323).

The spelling of 201102222020221 in words is "two hundred one trillion, one hundred two billion, two hundred twenty-two million, twenty thousand, two hundred twenty-one".