11101002121 has 8 divisors (see below), whose sum is σ = 12144888000. Its totient is φ = 10062900240.

The previous prime is 11101002089. The next prime is 11101002131. The reversal of 11101002121 is 12120010111.

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 11101002121 - 2⁵ = 11101002089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101002098 and 11101002107.

It is not an unprimeable number, because it can be changed into a prime (11101002131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441981 + ... + 1449658.

It is an arithmetic number, because the mean of its divisors is an integer number (1518111000).

Almost surely, 2^11101002121 is an apocalyptic number.

11101002121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101002121 is a deficient number, since it is larger than the sum of its proper divisors (1043885879).

11101002121 is a wasteful number, since it uses less digits than its factorization.

11101002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891999.

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

Adding to 11101002121 its reverse (12120010111), we get a palindrome (23221012232).

The spelling of 11101002121 in words is "eleven billion, one hundred one million, two thousand, one hundred twenty-one".