22144154131145 has 8 divisors (see below), whose sum is σ = 26576327939400. Its totient is φ = 17713094650240.

The previous prime is 22144154131123. The next prime is 22144154131159. The reversal of 22144154131145 is 54113145144122.

It can be written as a sum of positive squares in 4 ways, for example, as 7685824718224 + 14458329412921 = 2772332^2 + 3802411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22144154131145 - 2²² = 22144149936841 is a prime.

It is a super-2 number, since 2×22144154131145² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22144154131099 and 22144154131108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278538116 + ... + 278617605.

It is an arithmetic number, because the mean of its divisors is an integer number (3322040992425).

Almost surely, 2^{22144154131145} is an apocalyptic number.

It is an amenable number.

22144154131145 is a deficient number, since it is larger than the sum of its proper divisors (4432173808255).

22144154131145 is an equidigital number, since it uses as much as digits as its factorization.

22144154131145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557163675.

The product of its digits is 76800, while the sum is 38.

Adding to 22144154131145 its reverse (54113145144122), we get a palindrome (76257299275267).

The spelling of 22144154131145 in words is "twenty-two trillion, one hundred forty-four billion, one hundred fifty-four million, one hundred thirty-one thousand, one hundred forty-five".