221332220011 has 4 divisors (see below), whose sum is σ = 252951108592. Its totient is φ = 189713331432.

The previous prime is 221332219973. The next prime is 221332220027. The reversal of 221332220011 is 110022233122.

221332220011 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 221332220011 - 2⁷ = 221332219883 is a prime.

It is a super-2 number, since 2×221332220011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221332260011) 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, 15809444280 + ... + 15809444293.

It is an arithmetic number, because the mean of its divisors is an integer number (63237777148).

Almost surely, 2^221332220011 is an apocalyptic number.

221332220011 is a deficient number, since it is larger than the sum of its proper divisors (31618888581).

221332220011 is an equidigital number, since it uses as much as digits as its factorization.

221332220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31618888580.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221332220011 its reverse (110022233122), we get a palindrome (331354453133).

The spelling of 221332220011 in words is "two hundred twenty-one billion, three hundred thirty-two million, two hundred twenty thousand, eleven".