11002020121000 has 64 divisors (see below), whose sum is σ = 25745224265280. Its totient is φ = 4400723060800.

The previous prime is 11002020120967. The next prime is 11002020121007. The reversal of 11002020121000 is 12102020011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11002020121007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89325459 + ... + 89448541.

It is an arithmetic number, because the mean of its divisors is an integer number (402269129145).

Almost surely, 2^{11002020121000} is an apocalyptic number.

11002020121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002020121000 is an abundant number, since it is smaller than the sum of its proper divisors (14743204144280).

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

11002020121000 is a wasteful number, since it uses less digits than its factorization.

11002020121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212491 (or 212477 counting only the distinct ones).

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

Adding to 11002020121000 its reverse (12102020011), we get a palindrome (11014122141011).

The spelling of 11002020121000 in words is "eleven trillion, two billion, twenty million, one hundred twenty-one thousand".