11002001220120 has 64 divisors (see below), whose sum is σ = 34947533293920. Its totient is φ = 2761286580224.

The previous prime is 11002001220107. The next prime is 11002001220131. The reversal of 11002001220120 is 2102210020011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11002001220096 and 11002001220105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2696566887 + ... + 2696570966.

Almost surely, 2^{11002001220120} is an apocalyptic number.

11002001220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002001220120 is an abundant number, since it is smaller than the sum of its proper divisors (23945532073800).

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

11002001220120 is a wasteful number, since it uses less digits than its factorization.

11002001220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393137884 (or 5393137880 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11002001220120 its reverse (2102210020011), we get a palindrome (13104211240131).

The spelling of 11002001220120 in words is "eleven trillion, two billion, one million, two hundred twenty thousand, one hundred twenty".