22144154232240 has 120 divisors (see below), whose sum is σ = 75586589992368. Its totient is φ = 5808302737920.

The previous prime is 22144154232197. The next prime is 22144154232293. The reversal of 22144154232240 is 4223245144122.

22144154232240 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 4 + 1 + 5 + 423 + 224 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×22144154232240² (a number of 27 digits) contains 22 as substring.

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 = 22144154232195 and 22144154232204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252052554 + ... + 252140393.

Almost surely, 2^{22144154232240} is an apocalyptic number.

22144154232240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22144154232240 is an abundant number, since it is smaller than the sum of its proper divisors (53442435760128).

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

22144154232240 is a wasteful number, since it uses less digits than its factorization.

22144154232240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504193027 (or 504193018 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 22144154232240 its reverse (4223245144122), we get a palindrome (26367399376362).

The spelling of 22144154232240 in words is "twenty-two trillion, one hundred forty-four billion, one hundred fifty-four million, two hundred thirty-two thousand, two hundred forty".