221311121342099 has 2 divisors, whose sum is σ = 221311121342100. Its totient is φ = 221311121342098.

The previous prime is 221311121342023. The next prime is 221311121342107. The reversal of 221311121342099 is 990243121113122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221311121342099 - 2⁴⁰ = 220211609714323 is a prime.

It is a super-2 number, since 2×221311121342099² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221311121344099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655560671049 + 110655560671050.

It is an arithmetic number, because the mean of its divisors is an integer number (110655560671050).

Almost surely, 2^{221311121342099} is an apocalyptic number.

221311121342099 is a deficient number, since it is larger than the sum of its proper divisors (1).

221311121342099 is an equidigital number, since it uses as much as digits as its factorization.

221311121342099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 221311121342099 in words is "two hundred twenty-one trillion, three hundred eleven billion, one hundred twenty-one million, three hundred forty-two thousand, ninety-nine".