221000110011 has 12 divisors (see below), whose sum is σ = 321518946840. Its totient is φ = 146273453280.

The previous prime is 221000109997. The next prime is 221000110027. The reversal of 221000110011 is 110011000122.

It is a happy number.

It is not a de Polignac number, because 221000110011 - 2¹⁷ = 220999978939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

221000110011 is a modest number, since divided by 110011 gives 2210 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 221000109975 and 221000110002.

It is not an unprimeable number, because it can be changed into a prime (221000110061) 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, 88328130 + ... + 88330631.

It is an arithmetic number, because the mean of its divisors is an integer number (26793245570).

Almost surely, 2^221000110011 is an apocalyptic number.

221000110011 is a deficient number, since it is larger than the sum of its proper divisors (100518836829).

221000110011 is a wasteful number, since it uses less digits than its factorization.

221000110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176658906 (or 176658903 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 221000110011 its reverse (110011000122), we get a palindrome (331011110133).

The spelling of 221000110011 in words is "two hundred twenty-one billion, one hundred ten thousand, eleven".