11041221029 has 2 divisors, whose sum is σ = 11041221030. Its totient is φ = 11041221028.

The previous prime is 11041220987. The next prime is 11041221041. The reversal of 11041221029 is 92012214011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7071969025 + 3969252004 = 84095^2 + 63002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11041221029 is a prime.

It is a super-2 number, since 2×11041221029² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11041220995 and 11041221013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11041221089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5520610514 + 5520610515.

It is an arithmetic number, because the mean of its divisors is an integer number (5520610515).

Almost surely, 2^11041221029 is an apocalyptic number.

It is an amenable number.

11041221029 is a deficient number, since it is larger than the sum of its proper divisors (1).

11041221029 is an equidigital number, since it uses as much as digits as its factorization.

11041221029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 11041221029 in words is "eleven billion, forty-one million, two hundred twenty-one thousand, twenty-nine".