11101000121020 has 12 divisors (see below), whose sum is σ = 23312100254184. Its totient is φ = 4440400048400.

The previous prime is 11101000120993. The next prime is 11101000121027. The reversal of 11101000121020 is 2012100010111.

11101000121020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 11101000120988 and 11101000121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101000121027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277525003006 + ... + 277525003045.

It is an arithmetic number, because the mean of its divisors is an integer number (1942675021182).

Almost surely, 2^{11101000121020} is an apocalyptic number.

11101000121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101000121020 is an abundant number, since it is smaller than the sum of its proper divisors (12211100133164).

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

11101000121020 is a wasteful number, since it uses less digits than its factorization.

11101000121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555050006060 (or 555050006058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11101000121020 its reverse (2012100010111), we get a palindrome (13113100131131).

The spelling of 11101000121020 in words is "eleven trillion, one hundred one billion, one hundred twenty-one thousand, twenty".