221190141 has 4 divisors (see below), whose sum is σ = 294920192. Its totient is φ = 147460092.

The previous prime is 221190139. The next prime is 221190143. The reversal of 221190141 is 141091122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (221190139) and next prime (221190143).

It is not a de Polignac number, because 221190141 - 2¹ = 221190139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221190143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36865021 + ... + 36865026.

It is an arithmetic number, because the mean of its divisors is an integer number (73730048).

Almost surely, 2^221190141 is an apocalyptic number.

It is an amenable number.

221190141 is a deficient number, since it is larger than the sum of its proper divisors (73730051).

221190141 is an equidigital number, since it uses as much as digits as its factorization.

221190141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73730050.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 221190141 is about 14872.4625062563. The cubic root of 221190141 is about 604.7677008126.

The spelling of 221190141 in words is "two hundred twenty-one million, one hundred ninety thousand, one hundred forty-one".