221101122100087 has 2 divisors, whose sum is σ = 221101122100088. Its totient is φ = 221101122100086.

The previous prime is 221101122100051. The next prime is 221101122100123. The reversal of 221101122100087 is 780001221101122.

It is a balanced prime because it is at equal distance from previous prime (221101122100051) and next prime (221101122100123).

It is a cyclic number.

It is not a de Polignac number, because 221101122100087 - 2¹¹ = 221101122098039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221101122100387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550561050043 + 110550561050044.

It is an arithmetic number, because the mean of its divisors is an integer number (110550561050044).

Almost surely, 2^{221101122100087} is an apocalyptic number.

221101122100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

221101122100087 is an equidigital number, since it uses as much as digits as its factorization.

221101122100087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 28.

The spelling of 221101122100087 in words is "two hundred twenty-one trillion, one hundred one billion, one hundred twenty-two million, one hundred thousand, eighty-seven".