1012212050197 has 2 divisors, whose sum is σ = 1012212050198. Its totient is φ = 1012212050196.

The previous prime is 1012212050177. The next prime is 1012212050233. The reversal of 1012212050197 is 7910502122101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997349758276 + 14862291921 = 998674^2 + 121911^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012212050197 - 2³¹ = 1010064566549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012212050177) 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, 506106025098 + 506106025099.

It is an arithmetic number, because the mean of its divisors is an integer number (506106025099).

Almost surely, 2^{1012212050197} is an apocalyptic number.

It is an amenable number.

1012212050197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012212050197 is an equidigital number, since it uses as much as digits as its factorization.

1012212050197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 1012212050197 its reverse (7910502122101), we get a palindrome (8922714172298).

The spelling of 1012212050197 in words is "one trillion, twelve billion, two hundred twelve million, fifty thousand, one hundred ninety-seven".