201120021100157 has 2 divisors, whose sum is σ = 201120021100158. Its totient is φ = 201120021100156.

The previous prime is 201120021100079. The next prime is 201120021100183. The reversal of 201120021100157 is 751001120021102.

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., 185601550556356 + 15518470543801 = 13623566^2 + 3939349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201120021100157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201120021102157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560010550078 + 100560010550079.

It is an arithmetic number, because the mean of its divisors is an integer number (100560010550079).

Almost surely, 2^{201120021100157} is an apocalyptic number.

It is an amenable number.

201120021100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120021100157 is an equidigital number, since it uses as much as digits as its factorization.

201120021100157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 201120021100157 its reverse (751001120021102), we get a palindrome (952121141121259).

The spelling of 201120021100157 in words is "two hundred one trillion, one hundred twenty billion, twenty-one million, one hundred thousand, one hundred fifty-seven".