20254222133245 has 4 divisors (see below), whose sum is σ = 24305066559900. Its totient is φ = 16203377706592.

The previous prime is 20254222133231. The next prime is 20254222133261. The reversal of 20254222133245 is 54233122245202.

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 10860695940249 + 9393526192996 = 3295557^2 + 3064886^2 .

It is a cyclic number.

It is not a de Polignac number, because 20254222133245 - 2⁵ = 20254222133213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025422213320 + ... + 2025422213329.

It is an arithmetic number, because the mean of its divisors is an integer number (6076266639975).

Almost surely, 2^{20254222133245} is an apocalyptic number.

It is an amenable number.

20254222133245 is a deficient number, since it is larger than the sum of its proper divisors (4050844426655).

20254222133245 is an equidigital number, since it uses as much as digits as its factorization.

20254222133245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050844426654.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 20254222133245 its reverse (54233122245202), we get a palindrome (74487344378447).

The spelling of 20254222133245 in words is "twenty trillion, two hundred fifty-four billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred forty-five".