11029392221 has 2 divisors, whose sum is σ = 11029392222. Its totient is φ = 11029392220.

The previous prime is 11029392191. The next prime is 11029392293. The reversal of 11029392221 is 12229392011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11027940196 + 1452025 = 105014^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11029392221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11029392721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5514696110 + 5514696111.

It is an arithmetic number, because the mean of its divisors is an integer number (5514696111).

Almost surely, 2^11029392221 is an apocalyptic number.

It is an amenable number.

11029392221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11029392221 is an equidigital number, since it uses as much as digits as its factorization.

11029392221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 11029392221 in words is "eleven billion, twenty-nine million, three hundred ninety-two thousand, two hundred twenty-one".