11422121 has 2 divisors, whose sum is σ = 11422122. Its totient is φ = 11422120.

The previous prime is 11422109. The next prime is 11422127. The reversal of 11422121 is 12122411.

It is a happy number.

11422121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 105625 = 3364^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 11422121 - 2²² = 7227817 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11422096 and 11422105.

It is not a weakly prime, because it can be changed into another prime (11422127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711060 + 5711061.

It is an arithmetic number, because the mean of its divisors is an integer number (5711061).

Almost surely, 2^11422121 is an apocalyptic number.

It is an amenable number.

11422121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11422121 is an equidigital number, since it uses as much as digits as its factorization.

11422121 is an evil number, because the sum of its binary digits is even.

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

The square root of 11422121 is about 3379.6628530077. The cubic root of 11422121 is about 225.2071902212.

Adding to 11422121 its reverse (12122411), we get a palindrome (23544532).

The spelling of 11422121 in words is "eleven million, four hundred twenty-two thousand, one hundred twenty-one".