11002021002 has 48 divisors (see below), whose sum is σ = 28845640512. Its totient is φ = 2958526080.

The previous prime is 11002020989. The next prime is 11002021007. The reversal of 11002021002 is 20012020011.

It is a super-2 number, since 2×11002021002² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11002021007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2566024 + ... + 2570307.

It is an arithmetic number, because the mean of its divisors is an integer number (600950844).

Almost surely, 2^11002021002 is an apocalyptic number.

11002021002 is an abundant number, since it is smaller than the sum of its proper divisors (17843619510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11002021002 is a wasteful number, since it uses less digits than its factorization.

11002021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136363 (or 5136360 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11002021002 its reverse (20012020011), we get a palindrome (31014041013).

Subtracting 11002021002 from its reverse (20012020011), we obtain a palindrome (9009999009).

The spelling of 11002021002 in words is "eleven billion, two million, twenty-one thousand, two".