20212200199993 has 2 divisors, whose sum is σ = 20212200199994. Its totient is φ = 20212200199992.

The previous prime is 20212200199967. The next prime is 20212200200009. The reversal of 20212200199993 is 39999100221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19279098295209 + 933101904784 = 4390797^2 + 965972^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212200199993 - 2²¹ = 20212198102841 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212200199903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106100099996 + 10106100099997.

It is an arithmetic number, because the mean of its divisors is an integer number (10106100099997).

Almost surely, 2^{20212200199993} is an apocalyptic number.

It is an amenable number.

20212200199993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212200199993 is an equidigital number, since it uses as much as digits as its factorization.

20212200199993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 20212200199993 in words is "twenty trillion, two hundred twelve billion, two hundred million, one hundred ninety-nine thousand, nine hundred ninety-three".