21223422301 has 2 divisors, whose sum is σ = 21223422302. Its totient is φ = 21223422300.

The previous prime is 21223422277. The next prime is 21223422307. The reversal of 21223422301 is 10322432212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15492780900 + 5730641401 = 124470^2 + 75701^2 .

It is a cyclic number.

It is not a de Polignac number, because 21223422301 - 2⁷ = 21223422173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223422307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611711150 + 10611711151.

It is an arithmetic number, because the mean of its divisors is an integer number (10611711151).

Almost surely, 2^21223422301 is an apocalyptic number.

It is an amenable number.

21223422301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223422301 is an equidigital number, since it uses as much as digits as its factorization.

21223422301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21223422301 its reverse (10322432212), we get a palindrome (31545854513).

The spelling of 21223422301 in words is "twenty-one billion, two hundred twenty-three million, four hundred twenty-two thousand, three hundred one".