221401104143 has 2 divisors, whose sum is σ = 221401104144. Its totient is φ = 221401104142.

The previous prime is 221401104121. The next prime is 221401104163. The reversal of 221401104143 is 341401104122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221401104143 - 2¹⁸ = 221400841999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221401104163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110700552071 + 110700552072.

It is an arithmetic number, because the mean of its divisors is an integer number (110700552072).

Almost surely, 2^221401104143 is an apocalyptic number.

221401104143 is a deficient number, since it is larger than the sum of its proper divisors (1).

221401104143 is an equidigital number, since it uses as much as digits as its factorization.

221401104143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221401104143 its reverse (341401104122), we get a palindrome (562802208265).

The spelling of 221401104143 in words is "two hundred twenty-one billion, four hundred one million, one hundred four thousand, one hundred forty-three".