220021191733393 has 2 divisors, whose sum is σ = 220021191733394. Its totient is φ = 220021191733392.

The previous prime is 220021191733379. The next prime is 220021191733417. The reversal of 220021191733393 is 393337191120022.

It is a happy number.

220021191733393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219961764507664 + 59427225729 = 14831108^2 + 243777^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021191733393 - 2¹⁷ = 220021191602321 is a prime.

It is not a weakly prime, because it can be changed into another prime (220021191733373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010595866696 + 110010595866697.

It is an arithmetic number, because the mean of its divisors is an integer number (110010595866697).

Almost surely, 2^{220021191733393} is an apocalyptic number.

It is an amenable number.

220021191733393 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021191733393 is an equidigital number, since it uses as much as digits as its factorization.

220021191733393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 220021191733393 in words is "two hundred twenty trillion, twenty-one billion, one hundred ninety-one million, seven hundred thirty-three thousand, three hundred ninety-three".