22151005350444 has 96 divisors (see below), whose sum is σ = 60807816115200. Its totient is φ = 6949205326080.

The previous prime is 22151005350391. The next prime is 22151005350449. The reversal of 22151005350444 is 44405350015122.

22151005350444 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 100 + 5 + 3 + 504 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22151005350399 and 22151005350408.

It is not an unprimeable number, because it can be changed into a prime (22151005350449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161335977 + ... + 161473215.

It is an arithmetic number, because the mean of its divisors is an integer number (633414751200).

Almost surely, 2^{22151005350444} is an apocalyptic number.

It is an amenable number.

22151005350444 is an abundant number, since it is smaller than the sum of its proper divisors (38656810764756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22151005350444 is a wasteful number, since it uses less digits than its factorization.

22151005350444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225180 (or 225172 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 22151005350444 its reverse (44405350015122), we get a palindrome (66556355365566).

The spelling of 22151005350444 in words is "twenty-two trillion, one hundred fifty-one billion, five million, three hundred fifty thousand, four hundred forty-four".