11001001001222 has 4 divisors (see below), whose sum is σ = 16501501501836. Its totient is φ = 5500500500610.

The previous prime is 11001001001213. The next prime is 11001001001227. The reversal of 11001001001222 is 22210010010011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001001001227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750250250304 + ... + 2750250250307.

It is an arithmetic number, because the mean of its divisors is an integer number (4125375375459).

Almost surely, 2^{11001001001222} is an apocalyptic number.

11001001001222 is a deficient number, since it is larger than the sum of its proper divisors (5500500500614).

11001001001222 is an equidigital number, since it uses as much as digits as its factorization.

11001001001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500500500613.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11001001001222 its reverse (22210010010011), we get a palindrome (33211011011233).

The spelling of 11001001001222 in words is "eleven trillion, one billion, one million, one thousand, two hundred twenty-two".