22303134221 has 4 divisors (see below), whose sum is σ = 22617262944. Its totient is φ = 21989005500.

The previous prime is 22303134193. The next prime is 22303134257. The reversal of 22303134221 is 12243130322.

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 22303134221 - 2¹⁰ = 22303133197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303136221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157064255 + ... + 157064396.

It is an arithmetic number, because the mean of its divisors is an integer number (5654315736).

Almost surely, 2^22303134221 is an apocalyptic number.

It is an amenable number.

22303134221 is a deficient number, since it is larger than the sum of its proper divisors (314128723).

22303134221 is an equidigital number, since it uses as much as digits as its factorization.

22303134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314128722.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22303134221 its reverse (12243130322), we get a palindrome (34546264543).

The spelling of 22303134221 in words is "twenty-two billion, three hundred three million, one hundred thirty-four thousand, two hundred twenty-one".