22121144433 has 6 divisors (see below), whose sum is σ = 31952764194. Its totient is φ = 14747429616.

The previous prime is 22121144431. The next prime is 22121144449. The reversal of 22121144433 is 33444112122.

22121144433 is a `hidden beast` number, since 2 + 2 + 1 + 211 + 4 + 443 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14765166144 + 7355978289 = 121512^2 + 85767^2 .

It is not a de Polignac number, because 22121144433 - 2¹ = 22121144431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22121144397 and 22121144406.

It is not an unprimeable number, because it can be changed into a prime (22121144431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228952460 + ... + 1228952477.

It is an arithmetic number, because the mean of its divisors is an integer number (5325460699).

Almost surely, 2^22121144433 is an apocalyptic number.

It is an amenable number.

22121144433 is a deficient number, since it is larger than the sum of its proper divisors (9831619761).

22121144433 is a wasteful number, since it uses less digits than its factorization.

22121144433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457904943 (or 2457904940 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 22121144433 its reverse (33444112122), we get a palindrome (55565256555).

The spelling of 22121144433 in words is "twenty-two billion, one hundred twenty-one million, one hundred forty-four thousand, four hundred thirty-three".