10221122111 has 2 divisors, whose sum is σ = 10221122112. Its totient is φ = 10221122110.

The previous prime is 10221122081. The next prime is 10221122117. The reversal of 10221122111 is 11122112201.

It is a strong prime.

It is an emirp because it is prime and its reverse (11122112201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10221122111 - 2¹⁸ = 10220859967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221122117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110561055 + 5110561056.

It is an arithmetic number, because the mean of its divisors is an integer number (5110561056).

Almost surely, 2^10221122111 is an apocalyptic number.

10221122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221122111 is an equidigital number, since it uses as much as digits as its factorization.

10221122111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221122111 its reverse (11122112201), we get a palindrome (21343234312).

The spelling of 10221122111 in words is "ten billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred eleven".