1102222021 has 2 divisors, whose sum is σ = 1102222022. Its totient is φ = 1102222020.

The previous prime is 1102222007. The next prime is 1102222027. The reversal of 1102222021 is 1202222011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010349796 + 91872225 = 31786^2 + 9585^2 .

It is an emirp because it is prime and its reverse (1202222011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1102222021 - 2²³ = 1093833413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102221992 and 1102222010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102222027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551111010 + 551111011.

It is an arithmetic number, because the mean of its divisors is an integer number (551111011).

Almost surely, 2^1102222021 is an apocalyptic number.

It is an amenable number.

1102222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102222021 is an equidigital number, since it uses as much as digits as its factorization.

1102222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1102222021 is about 33199.7292308236. The cubic root of 1102222021 is about 1032.9747231393.

Adding to 1102222021 its reverse (1202222011), we get a palindrome (2304444032).

The spelling of 1102222021 in words is "one billion, one hundred two million, two hundred twenty-two thousand, twenty-one".