221042675587 has 2 divisors, whose sum is σ = 221042675588. Its totient is φ = 221042675586.

The previous prime is 221042675569. The next prime is 221042675647. The reversal of 221042675587 is 785576240122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221042675587 - 2¹¹ = 221042673539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221042675587.

It is not a weakly prime, because it can be changed into another prime (221042670587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110521337793 + 110521337794.

It is an arithmetic number, because the mean of its divisors is an integer number (110521337794).

Almost surely, 2^221042675587 is an apocalyptic number.

221042675587 is a deficient number, since it is larger than the sum of its proper divisors (1).

221042675587 is an equidigital number, since it uses as much as digits as its factorization.

221042675587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 221042675587 in words is "two hundred twenty-one billion, forty-two million, six hundred seventy-five thousand, five hundred eighty-seven".