221302244220151 has 2 divisors, whose sum is σ = 221302244220152. Its totient is φ = 221302244220150.

The previous prime is 221302244220103. The next prime is 221302244220203. The reversal of 221302244220151 is 151022442203122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221302244220151 - 2²⁷ = 221302110002423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221302244224151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110651122110075 + 110651122110076.

It is an arithmetic number, because the mean of its divisors is an integer number (110651122110076).

Almost surely, 2^{221302244220151} is an apocalyptic number.

221302244220151 is a deficient number, since it is larger than the sum of its proper divisors (1).

221302244220151 is an equidigital number, since it uses as much as digits as its factorization.

221302244220151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 221302244220151 its reverse (151022442203122), we get a palindrome (372324686423273).

The spelling of 221302244220151 in words is "two hundred twenty-one trillion, three hundred two billion, two hundred forty-four million, two hundred twenty thousand, one hundred fifty-one".