1012200100157 has 2 divisors, whose sum is σ = 1012200100158. Its totient is φ = 1012200100156.

The previous prime is 1012200100049. The next prime is 1012200100193. The reversal of 1012200100157 is 7510010022101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621667594681 + 390532505476 = 788459^2 + 624926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012200100157 - 2³⁴ = 995020230973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012200100757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506100050078 + 506100050079.

It is an arithmetic number, because the mean of its divisors is an integer number (506100050079).

Almost surely, 2^{1012200100157} is an apocalyptic number.

It is an amenable number.

1012200100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012200100157 is an equidigital number, since it uses as much as digits as its factorization.

1012200100157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

Adding to 1012200100157 its reverse (7510010022101), we get a palindrome (8522210122258).

The spelling of 1012200100157 in words is "one trillion, twelve billion, two hundred million, one hundred thousand, one hundred fifty-seven".