11021102121 has 4 divisors (see below), whose sum is σ = 14694802832. Its totient is φ = 7347401412.

The previous prime is 11021102093. The next prime is 11021102153. The reversal of 11021102121 is 12120112011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11021102121 - 2¹⁰ = 11021101097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021102097 and 11021102106.

It is not an unprimeable number, because it can be changed into a prime (11021102821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836850351 + ... + 1836850356.

It is an arithmetic number, because the mean of its divisors is an integer number (3673700708).

Almost surely, 2^11021102121 is an apocalyptic number.

It is an amenable number.

11021102121 is a deficient number, since it is larger than the sum of its proper divisors (3673700711).

11021102121 is an equidigital number, since it uses as much as digits as its factorization.

11021102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673700710.

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

Adding to 11021102121 its reverse (12120112011), we get a palindrome (23141214132).

The spelling of 11021102121 in words is "eleven billion, twenty-one million, one hundred two thousand, one hundred twenty-one".