221330131147 has 2 divisors, whose sum is σ = 221330131148. Its totient is φ = 221330131146.

The previous prime is 221330131097. The next prime is 221330131157. The reversal of 221330131147 is 741131033122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221330131147 - 2²³ = 221321742539 is a prime.

It is not a weakly prime, because it can be changed into another prime (221330131157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110665065573 + 110665065574.

It is an arithmetic number, because the mean of its divisors is an integer number (110665065574).

Almost surely, 2^221330131147 is an apocalyptic number.

221330131147 is a deficient number, since it is larger than the sum of its proper divisors (1).

221330131147 is an equidigital number, since it uses as much as digits as its factorization.

221330131147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 221330131147 its reverse (741131033122), we get a palindrome (962461164269).

The spelling of 221330131147 in words is "two hundred twenty-one billion, three hundred thirty million, one hundred thirty-one thousand, one hundred forty-seven".