11002121002 has 4 divisors (see below), whose sum is σ = 16503181506. Its totient is φ = 5501060500.

The previous prime is 11002120973. The next prime is 11002121003. The reversal of 11002121002 is 20012120011.

11002121002 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., 9854334361 + 1147786641 = 99269^2 + 33879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11002121002.

It is not an unprimeable number, because it can be changed into a prime (11002121003) by changing a digit.

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, 2750530249 + ... + 2750530252.

Almost surely, 2^11002121002 is an apocalyptic number.

11002121002 is a deficient number, since it is larger than the sum of its proper divisors (5501060504).

11002121002 is an equidigital number, since it uses as much as digits as its factorization.

11002121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501060503.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11002121002 its reverse (20012120011), we get a palindrome (31014241013).

Subtracting 11002121002 from its reverse (20012120011), we obtain a palindrome (9009999009).

The spelling of 11002121002 in words is "eleven billion, two million, one hundred twenty-one thousand, two".