11002012121220 has 24 divisors (see below), whose sum is σ = 30805633939584. Its totient is φ = 2933869898976.

The previous prime is 11002012121209. The next prime is 11002012121249. The reversal of 11002012121220 is 2212121020011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11002012121220.

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, 91683434284 + ... + 91683434403.

It is an arithmetic number, because the mean of its divisors is an integer number (1283568080816).

Almost surely, 2^{11002012121220} is an apocalyptic number.

11002012121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002012121220 is an abundant number, since it is smaller than the sum of its proper divisors (19803621818364).

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

11002012121220 is a wasteful number, since it uses less digits than its factorization.

11002012121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183366868699 (or 183366868697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11002012121220 its reverse (2212121020011), we get a palindrome (13214133141231).

The spelling of 11002012121220 in words is "eleven trillion, two billion, twelve million, one hundred twenty-one thousand, two hundred twenty".