21133122301 has 2 divisors, whose sum is σ = 21133122302. Its totient is φ = 21133122300.

The previous prime is 21133122211. The next prime is 21133122319. The reversal of 21133122301 is 10322133112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20451860100 + 681262201 = 143010^2 + 26101^2 .

It is a cyclic number.

It is not a de Polignac number, because 21133122301 - 2¹⁵ = 21133089533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21133122341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566561150 + 10566561151.

It is an arithmetic number, because the mean of its divisors is an integer number (10566561151).

Almost surely, 2^21133122301 is an apocalyptic number.

It is an amenable number.

21133122301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133122301 is an equidigital number, since it uses as much as digits as its factorization.

21133122301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21133122301 its reverse (10322133112), we get a palindrome (31455255413).

The spelling of 21133122301 in words is "twenty-one billion, one hundred thirty-three million, one hundred twenty-two thousand, three hundred one".