20220303513821 has 2 divisors, whose sum is σ = 20220303513822. Its totient is φ = 20220303513820.

The previous prime is 20220303513779. The next prime is 20220303513887. The reversal of 20220303513821 is 12831530302202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17764623336100 + 2455680177721 = 4214810^2 + 1567061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20220303513821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220303512821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110151756910 + 10110151756911.

It is an arithmetic number, because the mean of its divisors is an integer number (10110151756911).

Almost surely, 2^{20220303513821} is an apocalyptic number.

It is an amenable number.

20220303513821 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220303513821 is an equidigital number, since it uses as much as digits as its factorization.

20220303513821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20220303513821 in words is "twenty trillion, two hundred twenty billion, three hundred three million, five hundred thirteen thousand, eight hundred twenty-one".