23223400413221 has 2 divisors, whose sum is σ = 23223400413222. Its totient is φ = 23223400413220.

The previous prime is 23223400413209. The next prime is 23223400413277. The reversal of 23223400413221 is 12231400432232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18626604381025 + 4596796032196 = 4315855^2 + 2144014^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223400413221 - 2¹⁰ = 23223400412197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23223400413821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611700206610 + 11611700206611.

It is an arithmetic number, because the mean of its divisors is an integer number (11611700206611).

Almost surely, 2^{23223400413221} is an apocalyptic number.

It is an amenable number.

23223400413221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223400413221 is an equidigital number, since it uses as much as digits as its factorization.

23223400413221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23223400413221 its reverse (12231400432232), we get a palindrome (35454800845453).

The spelling of 23223400413221 in words is "twenty-three trillion, two hundred twenty-three billion, four hundred million, four hundred thirteen thousand, two hundred twenty-one".