221074141 has 2 divisors, whose sum is σ = 221074142. Its totient is φ = 221074140.

The previous prime is 221074109. The next prime is 221074151. The reversal of 221074141 is 141470122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121992025 + 99082116 = 11045^2 + 9954^2 .

It is a cyclic number.

It is not a de Polignac number, because 221074141 - 2⁵ = 221074109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221074151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110537070 + 110537071.

It is an arithmetic number, because the mean of its divisors is an integer number (110537071).

Almost surely, 2^221074141 is an apocalyptic number.

It is an amenable number.

221074141 is a deficient number, since it is larger than the sum of its proper divisors (1).

221074141 is an equidigital number, since it uses as much as digits as its factorization.

221074141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 221074141 is about 14868.5621698939. The cubic root of 221074141 is about 604.6619617411.

The spelling of 221074141 in words is "two hundred twenty-one million, seventy-four thousand, one hundred forty-one".