20220221977253 has 2 divisors, whose sum is σ = 20220221977254. Its totient is φ = 20220221977252.

The previous prime is 20220221977231. The next prime is 20220221977261. The reversal of 20220221977253 is 35277912202202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11705690564164 + 8514531413089 = 3421358^2 + 2917967^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220221977253 - 2²⁴ = 20220205200037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220221977453) 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 as a sum of consecutive naturals, namely, 10110110988626 + 10110110988627.

It is an arithmetic number, because the mean of its divisors is an integer number (10110110988627).

Almost surely, 2^{20220221977253} is an apocalyptic number.

It is an amenable number.

20220221977253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220221977253 is an equidigital number, since it uses as much as digits as its factorization.

20220221977253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 20220221977253 in words is "twenty trillion, two hundred twenty billion, two hundred twenty-one million, nine hundred seventy-seven thousand, two hundred fifty-three".