401154422214191 has 2 divisors, whose sum is σ = 401154422214192. Its totient is φ = 401154422214190.

The previous prime is 401154422214109. The next prime is 401154422214233. The reversal of 401154422214191 is 191412224451104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401154422214191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401154422213191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200577211107095 + 200577211107096.

It is an arithmetic number, because the mean of its divisors is an integer number (200577211107096).

Almost surely, 2^{401154422214191} is an apocalyptic number.

401154422214191 is a deficient number, since it is larger than the sum of its proper divisors (1).

401154422214191 is an equidigital number, since it uses as much as digits as its factorization.

401154422214191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 41.

Adding to 401154422214191 its reverse (191412224451104), we get a palindrome (592566646665295).

The spelling of 401154422214191 in words is "four hundred one trillion, one hundred fifty-four billion, four hundred twenty-two million, two hundred fourteen thousand, one hundred ninety-one".