11121002002 has 16 divisors (see below), whose sum is σ = 18200700000. Its totient is φ = 5054251840.

The previous prime is 11121001987. The next prime is 11121002017. The reversal of 11121002002 is 20020012111.

It is an interprime number because it is at equal distance from previous prime (11121001987) and next prime (11121002017).

It is a self number, because there is not a number n which added to its sum of digits gives 11121002002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131274 + ... + 198682.

It is an arithmetic number, because the mean of its divisors is an integer number (1137543750).

Almost surely, 2^11121002002 is an apocalyptic number.

11121002002 is a deficient number, since it is larger than the sum of its proper divisors (7079697998).

11121002002 is a wasteful number, since it uses less digits than its factorization.

11121002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74921.

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

Adding to 11121002002 its reverse (20020012111), we get a palindrome (31141014113).

The spelling of 11121002002 in words is "eleven billion, one hundred twenty-one million, two thousand, two".