221441011 has 12 divisors (see below), whose sum is σ = 244771072. Its totient is φ = 200178000.

The previous prime is 221440981. The next prime is 221441053. The reversal of 221441011 is 110144122.

It is a happy number.

It is not a de Polignac number, because 221441011 - 2⁵ = 221440979 is a prime.

It is a super-2 number, since 2×221441011² = 98072242705404242, which contains 22 as substring.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21441011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16846 + ... + 26956.

Almost surely, 2^221441011 is an apocalyptic number.

221441011 is a deficient number, since it is larger than the sum of its proper divisors (23330061).

221441011 is a wasteful number, since it uses less digits than its factorization.

221441011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314 (or 10303 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 221441011 is about 14880.8941599623. The cubic root of 221441011 is about 604.9962534203.

Adding to 221441011 its reverse (110144122), we get a palindrome (331585133).

The spelling of 221441011 in words is "two hundred twenty-one million, four hundred forty-one thousand, eleven".