11221022002 has 4 divisors (see below), whose sum is σ = 16831533006. Its totient is φ = 5610511000.

The previous prime is 11221021991. The next prime is 11221022051. The reversal of 11221022002 is 20022012211.

It is a happy number.

11221022002 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 can be written as a sum of positive squares in only one way, i.e., 11218834561 + 2187441 = 105919^2 + 1479^2 .

It is a super-3 number, since 3×11221022002³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805255499 + ... + 2805255502.

Almost surely, 2^11221022002 is an apocalyptic number.

11221022002 is a deficient number, since it is larger than the sum of its proper divisors (5610511004).

11221022002 is an equidigital number, since it uses as much as digits as its factorization.

11221022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610511003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11221022002 its reverse (20022012211), we get a palindrome (31243034213).

The spelling of 11221022002 in words is "eleven billion, two hundred twenty-one million, twenty-two thousand, two".