1254522231121 has 4 divisors (see below), whose sum is σ = 1254529706932. Its totient is φ = 1254514755312.

The previous prime is 1254522231073. The next prime is 1254522231217. The reversal of 1254522231121 is 1211322254521.

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 1248906827025 + 5615404096 = 1117545^2 + 74936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254522231121 - 2⁹ = 1254522230609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254522211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3480270 + ... + 3823783.

It is an arithmetic number, because the mean of its divisors is an integer number (313632426733).

Almost surely, 2^{1254522231121} is an apocalyptic number.

It is an amenable number.

1254522231121 is a deficient number, since it is larger than the sum of its proper divisors (7475811).

1254522231121 is an equidigital number, since it uses as much as digits as its factorization.

1254522231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475810.

The product of its digits is 9600, while the sum is 31.

Adding to 1254522231121 its reverse (1211322254521), we get a palindrome (2465844485642).

The spelling of 1254522231121 in words is "one trillion, two hundred fifty-four billion, five hundred twenty-two million, two hundred thirty-one thousand, one hundred twenty-one".