22121119 has 4 divisors (see below), whose sum is σ = 22192560. Its totient is φ = 22049680.

The previous prime is 22121089. The next prime is 22121137. The reversal of 22121119 is 91112122.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121119 is a prime.

It is a super-2 number, since 2×22121119² = 978687811624322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121096 and 22121105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35254 + ... + 35875.

It is an arithmetic number, because the mean of its divisors is an integer number (5548140).

Almost surely, 2^22121119 is an apocalyptic number.

22121119 is a deficient number, since it is larger than the sum of its proper divisors (71441).

22121119 is an equidigital number, since it uses as much as digits as its factorization.

22121119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71440.

The product of its digits is 72, while the sum is 19.

The square root of 22121119 is about 4703.3093668182. The cubic root of 22121119 is about 280.7172047181.

The spelling of 22121119 in words is "twenty-two million, one hundred twenty-one thousand, one hundred nineteen".