11001002222021 has 12 divisors (see below), whose sum is σ = 12797288834400. Its totient is φ = 9429279705720.

The previous prime is 11001002221969. The next prime is 11001002222027. The reversal of 11001002222021 is 12022220010011.

It is a de Polignac number, because none of the positive numbers 2^k-11001002222021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001002221987 and 11001002222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001002222027) 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 11 ways as a sum of consecutive naturals, for example, 1356830 + ... + 4882928.

It is an arithmetic number, because the mean of its divisors is an integer number (1066440736200).

Almost surely, 2^{11001002222021} is an apocalyptic number.

It is an amenable number.

11001002222021 is a deficient number, since it is larger than the sum of its proper divisors (1796286612379).

11001002222021 is an equidigital number, since it uses as much as digits as its factorization.

11001002222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589784 (or 3589777 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11001002222021 its reverse (12022220010011), we get a palindrome (23023222232032).

The spelling of 11001002222021 in words is "eleven trillion, one billion, two million, two hundred twenty-two thousand, twenty-one".