11202020010221 has 2 divisors, whose sum is σ = 11202020010222. Its totient is φ = 11202020010220.

The previous prime is 11202020010199. The next prime is 11202020010253. The reversal of 11202020010221 is 12201002020211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11110522230025 + 91497780196 = 3333245^2 + 302486^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202020010221 - 2⁶ = 11202020010157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202020010196 and 11202020010205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202020010281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601010005110 + 5601010005111.

It is an arithmetic number, because the mean of its divisors is an integer number (5601010005111).

Almost surely, 2^{11202020010221} is an apocalyptic number.

It is an amenable number.

11202020010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202020010221 is an equidigital number, since it uses as much as digits as its factorization.

11202020010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11202020010221 its reverse (12201002020211), we get a palindrome (23403022030432).

The spelling of 11202020010221 in words is "eleven trillion, two hundred two billion, twenty million, ten thousand, two hundred twenty-one".