22144220424040 has 64 divisors (see below), whose sum is σ = 58535072184960. Its totient is φ = 7433025035520.

The previous prime is 22144220423993. The next prime is 22144220424049. The reversal of 22144220424040 is 4042402244122.

It is a junction number, because it is equal to n+sod(n) for n = 22144220423993 and 22144220424011.

It is not an unprimeable number, because it can be changed into a prime (22144220424049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1935677884 + ... + 1935689323.

It is an arithmetic number, because the mean of its divisors is an integer number (914610502890).

Almost surely, 2^{22144220424040} is an apocalyptic number.

22144220424040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22144220424040 is an abundant number, since it is smaller than the sum of its proper divisors (36390851760920).

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

22144220424040 is a wasteful number, since it uses less digits than its factorization.

22144220424040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871367242 (or 3871367238 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 22144220424040 its reverse (4042402244122), we get a palindrome (26186622668162).

The spelling of 22144220424040 in words is "twenty-two trillion, one hundred forty-four billion, two hundred twenty million, four hundred twenty-four thousand, forty".