11101211021 has 8 divisors (see below), whose sum is σ = 11953448640. Its totient is φ = 10271109568.

The previous prime is 11101210999. The next prime is 11101211041. The reversal of 11101211021 is 12011210111.

11101211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11101211021 - 2⁶ = 11101210957 is a prime.

It is a super-2 number, since 2×11101211021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101210993 and 11101211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101211041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5533001 + ... + 5535006.

It is an arithmetic number, because the mean of its divisors is an integer number (1494181080).

Almost surely, 2^11101211021 is an apocalyptic number.

It is an amenable number.

11101211021 is a deficient number, since it is larger than the sum of its proper divisors (852237619).

11101211021 is a wasteful number, since it uses less digits than its factorization.

11101211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11068083.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11101211021 its reverse (12011210111), we get a palindrome (23112421132).

The spelling of 11101211021 in words is "eleven billion, one hundred one million, two hundred eleven thousand, twenty-one".