22222505154145 has 8 divisors (see below), whose sum is σ = 26676813853440. Its totient is φ = 17771465677680.

The previous prime is 22222505154137. The next prime is 22222505154149. The reversal of 22222505154145 is 54145150522222.

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

It is not a de Polignac number, because 22222505154145 - 2³ = 22222505154137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222505154098 and 22222505154107.

It is not an unprimeable number, because it can be changed into a prime (22222505154149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817290751 + ... + 817317940.

It is an arithmetic number, because the mean of its divisors is an integer number (3334601731680).

Almost surely, 2^{22222505154145} is an apocalyptic number.

It is an amenable number.

22222505154145 is a deficient number, since it is larger than the sum of its proper divisors (4454308699295).

22222505154145 is a wasteful number, since it uses less digits than its factorization.

22222505154145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634611415.

The product of its (nonzero) digits is 320000, while the sum is 40.

Adding to 22222505154145 its reverse (54145150522222), we get a palindrome (76367655676367).

The spelling of 22222505154145 in words is "twenty-two trillion, two hundred twenty-two billion, five hundred five million, one hundred fifty-four thousand, one hundred forty-five".