401211121232177 has 2 divisors, whose sum is σ = 401211121232178. Its totient is φ = 401211121232176.

The previous prime is 401211121232137. The next prime is 401211121232333. The reversal of 401211121232177 is 771232121112104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383279250195361 + 17931871036816 = 19577519^2 + 4234604^2 .

It is a cyclic number.

It is not a de Polignac number, because 401211121232177 - 2³⁴ = 401193941362993 is a prime.

It is not a weakly prime, because it can be changed into another prime (401211121232137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200605560616088 + 200605560616089.

It is an arithmetic number, because the mean of its divisors is an integer number (200605560616089).

Almost surely, 2^{401211121232177} is an apocalyptic number.

It is an amenable number.

401211121232177 is a deficient number, since it is larger than the sum of its proper divisors (1).

401211121232177 is an equidigital number, since it uses as much as digits as its factorization.

401211121232177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 401211121232177 in words is "four hundred one trillion, two hundred eleven billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred seventy-seven".