11001000002120 has 64 divisors (see below), whose sum is σ = 24805077171840. Its totient is φ = 4391010265600.

The previous prime is 11001000002107. The next prime is 11001000002149. The reversal of 11001000002120 is 2120000010011.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 11001000002098 and 11001000002107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269460029 + ... + 269500851.

It is an arithmetic number, because the mean of its divisors is an integer number (387579330810).

Almost surely, 2^{11001000002120} is an apocalyptic number.

11001000002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001000002120 is an abundant number, since it is smaller than the sum of its proper divisors (13804077169720).

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

11001000002120 is a wasteful number, since it uses less digits than its factorization.

11001000002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55046 (or 55042 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11001000002120 its reverse (2120000010011), we get a palindrome (13121000012131).

The spelling of 11001000002120 in words is "eleven trillion, one billion, two thousand, one hundred twenty".