22121084 has 12 divisors (see below), whose sum is σ = 40047000. Its totient is φ = 10679088.

The previous prime is 22121083. The next prime is 22121089. The reversal of 22121084 is 48012122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121083) 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, 95234 + ... + 95465.

It is an arithmetic number, because the mean of its divisors is an integer number (3337250).

Almost surely, 2^22121084 is an apocalyptic number.

It is an amenable number.

22121084 is a deficient number, since it is larger than the sum of its proper divisors (17925916).

22121084 is a wasteful number, since it uses less digits than its factorization.

22121084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190732 (or 190730 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 22121084 is about 4703.3056460324. The cubic root of 22121084 is about 280.7170566679.

It can be divided in two parts, 221 and 21084, that multiplied together give a palindrome (4659564).

The spelling of 22121084 in words is "twenty-two million, one hundred twenty-one thousand, eighty-four".