11024022721 has 4 divisors (see below), whose sum is σ = 11024242992. Its totient is φ = 11023802452.

The previous prime is 11024022719. The next prime is 11024022731. The reversal of 11024022721 is 12722042011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11024022721 - 2¹ = 11024022719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11024022692 and 11024022701.

It is not an unprimeable number, because it can be changed into a prime (11024022731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190 + ... + 148576.

It is an arithmetic number, because the mean of its divisors is an integer number (2756060748).

Almost surely, 2^11024022721 is an apocalyptic number.

It is an amenable number.

11024022721 is a deficient number, since it is larger than the sum of its proper divisors (220271).

11024022721 is an equidigital number, since it uses as much as digits as its factorization.

11024022721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220270.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 11024022721 its reverse (12722042011), we get a palindrome (23746064732).

The spelling of 11024022721 in words is "eleven billion, twenty-four million, twenty-two thousand, seven hundred twenty-one".