221011101332 has 24 divisors (see below), whose sum is σ = 465286530240. Its totient is φ = 89733830400.

The previous prime is 221011101331. The next prime is 221011101397. The reversal of 221011101332 is 233101110122.

221011101332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221011101332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011101331) 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 7 ways as a sum of consecutive naturals, for example, 207716669 + ... + 207717732.

It is an arithmetic number, because the mean of its divisors is an integer number (19386938760).

Almost surely, 2^221011101332 is an apocalyptic number.

It is an amenable number.

221011101332 is an abundant number, since it is smaller than the sum of its proper divisors (244275428908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221011101332 is a wasteful number, since it uses less digits than its factorization.

221011101332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415434431 (or 415434429 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 221011101332 its reverse (233101110122), we get a palindrome (454112211454).

The spelling of 221011101332 in words is "two hundred twenty-one billion, eleven million, one hundred one thousand, three hundred thirty-two".