221443046087 has 2 divisors, whose sum is σ = 221443046088. Its totient is φ = 221443046086.

The previous prime is 221443046051. The next prime is 221443046101. The reversal of 221443046087 is 780640344122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221443046087 - 2¹² = 221443041991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221443046017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110721523043 + 110721523044.

It is an arithmetic number, because the mean of its divisors is an integer number (110721523044).

Almost surely, 2^221443046087 is an apocalyptic number.

221443046087 is a deficient number, since it is larger than the sum of its proper divisors (1).

221443046087 is an equidigital number, since it uses as much as digits as its factorization.

221443046087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 221443046087 in words is "two hundred twenty-one billion, four hundred forty-three million, forty-six thousand, eighty-seven".