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BaseRepresentation
bin101010110011…
…100010010101
3210010002111211
4222303202111
510333034031
61040301421
7164243461
oct52634225
923102454
1011221141
116374678
123911871
13242b639
1416c14a1
15eb9bb1
hexab3895

11221141 has 2 divisors, whose sum is σ = 11221142. Its totient is φ = 11221140.

The previous prime is 11221127. The next prime is 11221159. The reversal of 11221141 is 14112211.

Adding to 11221141 its reverse (14112211), we get a palindrome (25333352).

11221141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10923025 + 298116 = 3305^2 + 546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11221141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610570 + 5610571.

It is an arithmetic number, because the mean of its divisors is an integer number (5610571).

Almost surely, 211221141 is an apocalyptic number.

It is an amenable number.

11221141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221141 is an equidigital number, since it uses as much as digits as its factorization.

11221141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 13.

The square root of 11221141 is about 3349.7971580381. The cubic root of 11221141 is about 223.8784749513.

The spelling of 11221141 in words is "eleven million, two hundred twenty-one thousand, one hundred forty-one".