11001221221022 has 4 divisors (see below), whose sum is σ = 16501831831536. Its totient is φ = 5500610610510.

The previous prime is 11001221220991. The next prime is 11001221221033. The reversal of 11001221221022 is 22012212210011.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2750305305254 + ... + 2750305305257.

It is an arithmetic number, because the mean of its divisors is an integer number (4125457957884).

Almost surely, 2^{11001221221022} is an apocalyptic number.

11001221221022 is a deficient number, since it is larger than the sum of its proper divisors (5500610610514).

11001221221022 is an equidigital number, since it uses as much as digits as its factorization.

11001221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500610610513.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11001221221022 its reverse (22012212210011), we get a palindrome (33013433431033).

The spelling of 11001221221022 in words is "eleven trillion, one billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".