10255454522221 has 4 divisors (see below), whose sum is σ = 10273478168700. Its totient is φ = 10237430875744.

The previous prime is 10255454522191. The next prime is 10255454522279. The reversal of 10255454522221 is 12222545455201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1812216746596 + 8443237775625 = 1346186^2 + 2905725^2 .

It is a cyclic number.

It is not a de Polignac number, because 10255454522221 - 2³³ = 10246864587629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10255454532221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9011822386 + ... + 9011823523.

It is an arithmetic number, because the mean of its divisors is an integer number (2568369542175).

Almost surely, 2^{10255454522221} is an apocalyptic number.

It is an amenable number.

10255454522221 is a deficient number, since it is larger than the sum of its proper divisors (18023646479).

10255454522221 is an equidigital number, since it uses as much as digits as its factorization.

10255454522221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18023646478.

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

Adding to 10255454522221 its reverse (12222545455201), we get a palindrome (22477999977422).

The spelling of 10255454522221 in words is "ten trillion, two hundred fifty-five billion, four hundred fifty-four million, five hundred twenty-two thousand, two hundred twenty-one".