11101002120021 has 16 divisors (see below), whose sum is σ = 16151124962880. Its totient is φ = 6726124744320.

The previous prime is 11101002120007. The next prime is 11101002120031. The reversal of 11101002120021 is 12002120010111.

11101002120021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11101002120021 - 2⁵ = 11101002119989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101002119979 and 11101002120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101002120031) 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, 43754806 + ... + 44007783.

It is an arithmetic number, because the mean of its divisors is an integer number (1009445310180).

Almost surely, 2^{11101002120021} is an apocalyptic number.

11101002120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101002120021 is a deficient number, since it is larger than the sum of its proper divisors (5050122842859).

11101002120021 is a wasteful number, since it uses less digits than its factorization.

11101002120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87766436.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11101002120021 its reverse (12002120010111), we get a palindrome (23103122130132).

The spelling of 11101002120021 in words is "eleven trillion, one hundred one billion, two million, one hundred twenty thousand, twenty-one".