221120221151 has 2 divisors, whose sum is σ = 221120221152. Its totient is φ = 221120221150.

The previous prime is 221120221117. The next prime is 221120221159. The reversal of 221120221151 is 151122021122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221120221151 - 2²² = 221116026847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120221159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560110575 + 110560110576.

It is an arithmetic number, because the mean of its divisors is an integer number (110560110576).

Almost surely, 2^221120221151 is an apocalyptic number.

221120221151 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120221151 is an equidigital number, since it uses as much as digits as its factorization.

221120221151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 221120221151 its reverse (151122021122), we get a palindrome (372242242273).

The spelling of 221120221151 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred fifty-one".