11192921 has 4 divisors (see below), whose sum is σ = 11303844. Its totient is φ = 11082000.

The previous prime is 11192897. The next prime is 11192939. The reversal of 11192921 is 12929111.

11192921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5456896 + 5736025 = 2336^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 11192921 - 2¹⁰ = 11191897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11192971) 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, 55310 + ... + 55511.

It is an arithmetic number, because the mean of its divisors is an integer number (2825961).

Almost surely, 2^11192921 is an apocalyptic number.

It is an amenable number.

11192921 is a deficient number, since it is larger than the sum of its proper divisors (110923).

11192921 is a wasteful number, since it uses less digits than its factorization.

11192921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110922.

The product of its digits is 324, while the sum is 26.

The square root of 11192921 is about 3345.5823110484. The cubic root of 11192921 is about 223.6906403921.

The spelling of 11192921 in words is "eleven million, one hundred ninety-two thousand, nine hundred twenty-one".