22125344321455 has 4 divisors (see below), whose sum is σ = 26550413185752. Its totient is φ = 17700275457160.

The previous prime is 22125344321411. The next prime is 22125344321459. The reversal of 22125344321455 is 55412344352122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22125344321455 - 2⁹ = 22125344320943 is a prime.

It is a super-2 number, since 2×22125344321455² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22125344321459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212534432141 + ... + 2212534432150.

It is an arithmetic number, because the mean of its divisors is an integer number (6637603296438).

Almost surely, 2^{22125344321455} is an apocalyptic number.

22125344321455 is a deficient number, since it is larger than the sum of its proper divisors (4425068864297).

22125344321455 is an equidigital number, since it uses as much as digits as its factorization.

22125344321455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425068864296.

The product of its digits is 1152000, while the sum is 43.

Adding to 22125344321455 its reverse (55412344352122), we get a palindrome (77537688673577).

The spelling of 22125344321455 in words is "twenty-two trillion, one hundred twenty-five billion, three hundred forty-four million, three hundred twenty-one thousand, four hundred fifty-five".