11101101000021 has 48 divisors (see below), whose sum is σ = 16152403687680. Its totient is φ = 7346737843200.

The previous prime is 11101101000019. The next prime is 11101101000047. The reversal of 11101101000021 is 12000010110111.

It is not a de Polignac number, because 11101101000021 - 2¹ = 11101101000019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11101100999967 and 11101101000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101101000001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1180586706 + ... + 1180596108.

It is an arithmetic number, because the mean of its divisors is an integer number (336508410160).

Almost surely, 2^{11101101000021} is an apocalyptic number.

It is an amenable number.

11101101000021 is a deficient number, since it is larger than the sum of its proper divisors (5051302687659).

11101101000021 is a wasteful number, since it uses less digits than its factorization.

11101101000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11306 (or 11303 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11101101000021 its reverse (12000010110111), we get a palindrome (23101111110132).

The spelling of 11101101000021 in words is "eleven trillion, one hundred one billion, one hundred one million, twenty-one", and thus it is an aban number.