400201042220351 has 2 divisors, whose sum is σ = 400201042220352. Its totient is φ = 400201042220350.

The previous prime is 400201042220293. The next prime is 400201042220387. The reversal of 400201042220351 is 153022240102004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400201042220351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400201042220351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400201042250351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200100521110175 + 200100521110176.

It is an arithmetic number, because the mean of its divisors is an integer number (200100521110176).

Almost surely, 2^{400201042220351} is an apocalyptic number.

400201042220351 is a deficient number, since it is larger than the sum of its proper divisors (1).

400201042220351 is an equidigital number, since it uses as much as digits as its factorization.

400201042220351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 400201042220351 its reverse (153022240102004), we get a palindrome (553223282322355).

The spelling of 400201042220351 in words is "four hundred trillion, two hundred one billion, forty-two million, two hundred twenty thousand, three hundred fifty-one".