10221511 has 2 divisors, whose sum is σ = 10221512. Its totient is φ = 10221510.

The previous prime is 10221481. The next prime is 10221517. The reversal of 10221511 is 11512201.

10221511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221511 - 2¹³ = 10213319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221491 and 10221500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110755 + 5110756.

It is an arithmetic number, because the mean of its divisors is an integer number (5110756).

Almost surely, 2^10221511 is an apocalyptic number.

10221511 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221511 is an equidigital number, since it uses as much as digits as its factorization.

10221511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 10221511 is about 3197.1097885434. The cubic root of 10221511 is about 217.0226356222.

Adding to 10221511 its reverse (11512201), we get a palindrome (21733712).

The spelling of 10221511 in words is "ten million, two hundred twenty-one thousand, five hundred eleven".