6401222221047 has 8 divisors (see below), whose sum is σ = 9037019606256. Its totient is φ = 4016453158272.

The previous prime is 6401222221033. The next prime is 6401222221049. The reversal of 6401222221047 is 7401222221046.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6401222221047 - 2¹⁰ = 6401222220023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6401222220999 and 6401222221017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401222221049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62757080548 + ... + 62757080649.

It is an arithmetic number, because the mean of its divisors is an integer number (1129627450782).

Almost surely, 2^{6401222221047} is an apocalyptic number.

6401222221047 is a deficient number, since it is larger than the sum of its proper divisors (2635797385209).

6401222221047 is a wasteful number, since it uses less digits than its factorization.

6401222221047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125514161217.

The product of its (nonzero) digits is 21504, while the sum is 33.

Subtracting 6401222221047 from its reverse (7401222221046), we obtain a palindrome (999999999999).

The spelling of 6401222221047 in words is "six trillion, four hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, forty-seven".