400221314311244 has 12 divisors (see below), whose sum is σ = 700505548828344. Its totient is φ = 200076871788864.

The previous prime is 400221314311243. The next prime is 400221314311253. The reversal of 400221314311244 is 442113413122004.

It is a super-2 number, since 2×400221314311244² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400221314311244.

It is not an unprimeable number, because it can be changed into a prime (400221314311243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8446315037 + ... + 8446362420.

It is an arithmetic number, because the mean of its divisors is an integer number (58375462402362).

Almost surely, 2^{400221314311244} is an apocalyptic number.

It is an amenable number.

400221314311244 is a deficient number, since it is larger than the sum of its proper divisors (300284234517100).

400221314311244 is a wasteful number, since it uses less digits than its factorization.

400221314311244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16892683384 (or 16892683382 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 400221314311244 its reverse (442113413122004), we get a palindrome (842334727433248).

The spelling of 400221314311244 in words is "four hundred trillion, two hundred twenty-one billion, three hundred fourteen million, three hundred eleven thousand, two hundred forty-four".