11211001101 has 24 divisors (see below), whose sum is σ = 17781289344. Its totient is φ = 7034351040.

The previous prime is 11211001099. The next prime is 11211001103. The reversal of 11211001101 is 10110011211.

It is an interprime number because it is at equal distance from previous prime (11211001099) and next prime (11211001103).

It is not a de Polignac number, because 11211001101 - 2¹ = 11211001099 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211001103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1352805 + ... + 1361066.

It is an arithmetic number, because the mean of its divisors is an integer number (740887056).

Almost surely, 2^11211001101 is an apocalyptic number.

It is an amenable number.

11211001101 is a deficient number, since it is larger than the sum of its proper divisors (6570288243).

11211001101 is an equidigital number, since it uses as much as digits as its factorization.

11211001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713903 (or 2713891 counting only the distinct ones).

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

Adding to 11211001101 its reverse (10110011211), we get a palindrome (21321012312).

The spelling of 11211001101 in words is "eleven billion, two hundred eleven million, one thousand, one hundred one".