200010012212261 has 2 divisors, whose sum is σ = 200010012212262. Its totient is φ = 200010012212260.

The previous prime is 200010012212189. The next prime is 200010012212281. The reversal of 200010012212261 is 162212210010002.

It is an a-pointer prime, because the next prime (200010012212281) can be obtained adding 200010012212261 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189786965189761 + 10223047022500 = 13776319^2 + 3197350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200010012212261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200010012212281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100005006106130 + 100005006106131.

It is an arithmetic number, because the mean of its divisors is an integer number (100005006106131).

Almost surely, 2^{200010012212261} is an apocalyptic number.

It is an amenable number.

200010012212261 is a deficient number, since it is larger than the sum of its proper divisors (1).

200010012212261 is an equidigital number, since it uses as much as digits as its factorization.

200010012212261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 200010012212261 its reverse (162212210010002), we get a palindrome (362222222222263).

The spelling of 200010012212261 in words is "two hundred trillion, ten billion, twelve million, two hundred twelve thousand, two hundred sixty-one".