11001221039 has 2 divisors, whose sum is σ = 11001221040. Its totient is φ = 11001221038.

The previous prime is 11001221009. The next prime is 11001221047. The reversal of 11001221039 is 93012210011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11001221039 - 2²⁴ = 10984443823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11001221039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001221009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500610519 + 5500610520.

It is an arithmetic number, because the mean of its divisors is an integer number (5500610520).

Almost surely, 2^11001221039 is an apocalyptic number.

11001221039 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001221039 is an equidigital number, since it uses as much as digits as its factorization.

11001221039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 11001221039 in words is "eleven billion, one million, two hundred twenty-one thousand, thirty-nine".