11102022121 has 4 divisors (see below), whose sum is σ = 11484850500. Its totient is φ = 10719193744.

The previous prime is 11102022083. The next prime is 11102022131. The reversal of 11102022121 is 12122020111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7527297600 + 3574724521 = 86760^2 + 59789^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102022121 - 2¹⁷ = 11101891049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102022131) 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, 191414146 + ... + 191414203.

It is an arithmetic number, because the mean of its divisors is an integer number (2871212625).

Almost surely, 2^11102022121 is an apocalyptic number.

It is an amenable number.

11102022121 is a deficient number, since it is larger than the sum of its proper divisors (382828379).

11102022121 is an equidigital number, since it uses as much as digits as its factorization.

11102022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382828378.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11102022121 its reverse (12122020111), we get a palindrome (23224042232).

The spelling of 11102022121 in words is "eleven billion, one hundred two million, twenty-two thousand, one hundred twenty-one".