22082121 has 12 divisors (see below), whose sum is σ = 32180148. Its totient is φ = 14590464.

The previous prime is 22082119. The next prime is 22082131. The reversal of 22082121 is 12128022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2368521 + 19713600 = 1539^2 + 4440^2 .

It is not a de Polignac number, because 22082121 - 2¹ = 22082119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22082094 and 22082103.

It is not an unprimeable number, because it can be changed into a prime (22082101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9840 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (2681679).

Almost surely, 2^22082121 is an apocalyptic number.

It is an amenable number.

22082121 is a deficient number, since it is larger than the sum of its proper divisors (10098027).

22082121 is a wasteful number, since it uses less digits than its factorization.

22082121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21832 (or 21829 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22082121 is about 4699.1617337564. The cubic root of 22082121 is about 280.5521460241.

The spelling of 22082121 in words is "twenty-two million, eighty-two thousand, one hundred twenty-one".