201120120221177 has 2 divisors, whose sum is σ = 201120120221178. Its totient is φ = 201120120221176.

The previous prime is 201120120221173. The next prime is 201120120221257. The reversal of 201120120221177 is 771122021021102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174767051562601 + 26353068658576 = 13219949^2 + 5133524^2 .

It is a cyclic number.

It is not a de Polignac number, because 201120120221177 - 2² = 201120120221173 is a prime.

It is a super-2 number, since 2×201120120221177² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201120120221173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560060110588 + 100560060110589.

It is an arithmetic number, because the mean of its divisors is an integer number (100560060110589).

Almost surely, 2^{201120120221177} is an apocalyptic number.

It is an amenable number.

201120120221177 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120120221177 is an equidigital number, since it uses as much as digits as its factorization.

201120120221177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 201120120221177 its reverse (771122021021102), we get a palindrome (972242141242279).

The spelling of 201120120221177 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty million, two hundred twenty-one thousand, one hundred seventy-seven".