221341011 has 4 divisors (see below), whose sum is σ = 295121352. Its totient is φ = 147560672.

The previous prime is 221340991. The next prime is 221341019. The reversal of 221341011 is 110143122.

221341011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221341011 - 2⁶ = 221340947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221341019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36890166 + ... + 36890171.

It is an arithmetic number, because the mean of its divisors is an integer number (73780338).

Almost surely, 2^221341011 is an apocalyptic number.

221341011 is a deficient number, since it is larger than the sum of its proper divisors (73780341).

221341011 is an equidigital number, since it uses as much as digits as its factorization.

221341011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73780340.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 221341011 is about 14877.5337673957. The cubic root of 221341011 is about 604.9051701196.

Adding to 221341011 its reverse (110143122), we get a palindrome (331484133).

The spelling of 221341011 in words is "two hundred twenty-one million, three hundred forty-one thousand, eleven".