21223211232199 has 2 divisors, whose sum is σ = 21223211232200. Its totient is φ = 21223211232198.

The previous prime is 21223211232109. The next prime is 21223211232229. The reversal of 21223211232199 is 99123211232212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21223211232199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223211232109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611605616099 + 10611605616100.

It is an arithmetic number, because the mean of its divisors is an integer number (10611605616100).

Almost surely, 2^{21223211232199} is an apocalyptic number.

21223211232199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223211232199 is an equidigital number, since it uses as much as digits as its factorization.

21223211232199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The spelling of 21223211232199 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred eleven million, two hundred thirty-two thousand, one hundred ninety-nine".