221321202233099 has 2 divisors, whose sum is σ = 221321202233100. Its totient is φ = 221321202233098.

The previous prime is 221321202232993. The next prime is 221321202233101. The reversal of 221321202233099 is 990332202123122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221321202233099 - 2⁸ = 221321202232843 is a prime.

It is a super-2 number, since 2×221321202233099² (a number of 29 digits) contains 22 as substring.

Together with 221321202233101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221321202833099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110660601116549 + 110660601116550.

It is an arithmetic number, because the mean of its divisors is an integer number (110660601116550).

Almost surely, 2^{221321202233099} is an apocalyptic number.

221321202233099 is a deficient number, since it is larger than the sum of its proper divisors (1).

221321202233099 is an equidigital number, since it uses as much as digits as its factorization.

221321202233099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 221321202233099 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, two hundred two million, two hundred thirty-three thousand, ninety-nine".