221011210011 has 8 divisors (see below), whose sum is σ = 294706754560. Its totient is φ = 147328236072.

The previous prime is 221011209977. The next prime is 221011210027. The reversal of 221011210011 is 110012110122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221011210011 - 2¹⁵ = 221011177243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221011210711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3101551 + ... + 3172008.

It is an arithmetic number, because the mean of its divisors is an integer number (36838344320).

Almost surely, 2^221011210011 is an apocalyptic number.

221011210011 is a deficient number, since it is larger than the sum of its proper divisors (73695544549).

221011210011 is a wasteful number, since it uses less digits than its factorization.

221011210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285305.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221011210011 its reverse (110012110122), we get a palindrome (331023320133).

The spelling of 221011210011 in words is "two hundred twenty-one billion, eleven million, two hundred ten thousand, eleven".