1012200621193 has 2 divisors, whose sum is σ = 1012200621194. Its totient is φ = 1012200621192.

The previous prime is 1012200621161. The next prime is 1012200621217. The reversal of 1012200621193 is 3911260022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631003043449 + 381197577744 = 794357^2 + 617412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012200621193 - 2⁵ = 1012200621161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012200621293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506100310596 + 506100310597.

It is an arithmetic number, because the mean of its divisors is an integer number (506100310597).

Almost surely, 2^{1012200621193} is an apocalyptic number.

It is an amenable number.

1012200621193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012200621193 is an equidigital number, since it uses as much as digits as its factorization.

1012200621193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 1012200621193 its reverse (3911260022101), we get a palindrome (4923460643294).

The spelling of 1012200621193 in words is "one trillion, twelve billion, two hundred million, six hundred twenty-one thousand, one hundred ninety-three".