210201202109993 has 2 divisors, whose sum is σ = 210201202109994. Its totient is φ = 210201202109992.

The previous prime is 210201202109981. The next prime is 210201202110113. The reversal of 210201202109993 is 399901202102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199658115181849 + 10543086928144 = 14130043^2 + 3247012^2 .

It is a cyclic number.

It is not a de Polignac number, because 210201202109993 - 2⁶ = 210201202109929 is a prime.

It is a super-2 number, since 2×210201202109993² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210201202109993.

It is not a weakly prime, because it can be changed into another prime (210201202109903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105100601054996 + 105100601054997.

It is an arithmetic number, because the mean of its divisors is an integer number (105100601054997).

Almost surely, 2^{210201202109993} is an apocalyptic number.

It is an amenable number.

210201202109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

210201202109993 is an equidigital number, since it uses as much as digits as its factorization.

210201202109993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 210201202109993 in words is "two hundred ten trillion, two hundred one billion, two hundred two million, one hundred nine thousand, nine hundred ninety-three".