22003051321 has 4 divisors (see below), whose sum is σ = 22011081444. Its totient is φ = 21995021200.

The previous prime is 22003051297. The next prime is 22003051333. The reversal of 22003051321 is 12315030022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14391361296 + 7611690025 = 119964^2 + 87245^2 .

It is a cyclic number.

It is not a de Polignac number, because 22003051321 - 2¹⁷ = 22002920249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22003051351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010950 + ... + 4016431.

It is an arithmetic number, because the mean of its divisors is an integer number (5502770361).

Almost surely, 2^22003051321 is an apocalyptic number.

It is an amenable number.

22003051321 is a deficient number, since it is larger than the sum of its proper divisors (8030123).

22003051321 is an equidigital number, since it uses as much as digits as its factorization.

22003051321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030122.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 22003051321 its reverse (12315030022), we get a palindrome (34318081343).

The spelling of 22003051321 in words is "twenty-two billion, three million, fifty-one thousand, three hundred twenty-one".