22444220224521 has 32 divisors (see below), whose sum is σ = 35006279068800. Its totient is φ = 14173050945600.

The previous prime is 22444220224519. The next prime is 22444220224553. The reversal of 22444220224521 is 12542202244422.

22444220224521 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 422 + 0 + 224 + 5 + 2 + 1 = 666.

It is not a de Polignac number, because 22444220224521 - 2¹ = 22444220224519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22444220224511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222330 + ... + 6703571.

It is an arithmetic number, because the mean of its divisors is an integer number (1093946220900).

Almost surely, 2^{22444220224521} is an apocalyptic number.

It is an amenable number.

22444220224521 is a deficient number, since it is larger than the sum of its proper divisors (12562058844279).

22444220224521 is a wasteful number, since it uses less digits than its factorization.

22444220224521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932246 (or 6932240 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 22444220224521 its reverse (12542202244422), we get a palindrome (34986422468943).

The spelling of 22444220224521 in words is "twenty-two trillion, four hundred forty-four billion, two hundred twenty million, two hundred twenty-four thousand, five hundred twenty-one".