221500031141 has 2 divisors, whose sum is σ = 221500031142. Its totient is φ = 221500031140.

The previous prime is 221500031107. The next prime is 221500031153. The reversal of 221500031141 is 141130005122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217445016100 + 4055015041 = 466310^2 + 63679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221500031141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221500031101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110750015570 + 110750015571.

It is an arithmetic number, because the mean of its divisors is an integer number (110750015571).

Almost surely, 2^221500031141 is an apocalyptic number.

It is an amenable number.

221500031141 is a deficient number, since it is larger than the sum of its proper divisors (1).

221500031141 is an equidigital number, since it uses as much as digits as its factorization.

221500031141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 221500031141 its reverse (141130005122), we get a palindrome (362630036263).

The spelling of 221500031141 in words is "two hundred twenty-one billion, five hundred million, thirty-one thousand, one hundred forty-one".