200210102121989 has 2 divisors, whose sum is σ = 200210102121990. Its totient is φ = 200210102121988.

The previous prime is 200210102121959. The next prime is 200210102122031. The reversal of 200210102121989 is 989121201012002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194870152968100 + 5339949153889 = 13959590^2 + 2310833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200210102121989 is a prime.

It is a super-2 number, since 2×200210102121989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200210102121959) 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, 100105051060994 + 100105051060995.

It is an arithmetic number, because the mean of its divisors is an integer number (100105051060995).

Almost surely, 2^{200210102121989} is an apocalyptic number.

It is an amenable number.

200210102121989 is a deficient number, since it is larger than the sum of its proper divisors (1).

200210102121989 is an equidigital number, since it uses as much as digits as its factorization.

200210102121989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 200210102121989 in words is "two hundred trillion, two hundred ten billion, one hundred two million, one hundred twenty-one thousand, nine hundred eighty-nine".