221023032047 has 2 divisors, whose sum is σ = 221023032048. Its totient is φ = 221023032046.

The previous prime is 221023031993. The next prime is 221023032049. The reversal of 221023032047 is 740230320122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221023032047 is a prime.

Together with 221023032049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221023032049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511516023 + 110511516024.

It is an arithmetic number, because the mean of its divisors is an integer number (110511516024).

Almost surely, 2^221023032047 is an apocalyptic number.

221023032047 is a deficient number, since it is larger than the sum of its proper divisors (1).

221023032047 is an equidigital number, since it uses as much as digits as its factorization.

221023032047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 221023032047 its reverse (740230320122), we get a palindrome (961253352169).

The spelling of 221023032047 in words is "two hundred twenty-one billion, twenty-three million, thirty-two thousand, forty-seven".