2220202021993 has 2 divisors, whose sum is σ = 2220202021994. Its totient is φ = 2220202021992.

The previous prime is 2220202021987. The next prime is 2220202022081. The reversal of 2220202021993 is 3991202020222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952735144409 + 267466877584 = 1397403^2 + 517172^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220202021993 - 2¹³ = 2220202013801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220202021913) 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, 1110101010996 + 1110101010997.

It is an arithmetic number, because the mean of its divisors is an integer number (1110101010997).

Almost surely, 2^{2220202021993} is an apocalyptic number.

It is an amenable number.

2220202021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220202021993 is an equidigital number, since it uses as much as digits as its factorization.

2220202021993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 2220202021993 in words is "two trillion, two hundred twenty billion, two hundred two million, twenty-one thousand, nine hundred ninety-three".