40001400221321 has 16 divisors (see below), whose sum is σ = 49929664647168. Its totient is φ = 31133804096400.

The previous prime is 40001400221311. The next prime is 40001400221339. The reversal of 40001400221321 is 12312200410004.

It is a cyclic number.

It is not a de Polignac number, because 40001400221321 - 2¹⁰ = 40001400220297 is a prime.

It is a super-2 number, since 2×40001400221321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40001400221293 and 40001400221302.

It is not an unprimeable number, because it can be changed into a prime (40001400221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300917735 + ... + 301050636.

It is an arithmetic number, because the mean of its divisors is an integer number (3120604040448).

Almost surely, 2^{40001400221321} is an apocalyptic number.

It is an amenable number.

40001400221321 is a deficient number, since it is larger than the sum of its proper divisors (9928264425847).

40001400221321 is a wasteful number, since it uses less digits than its factorization.

40001400221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601969252.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 40001400221321 its reverse (12312200410004), we get a palindrome (52313600631325).

The spelling of 40001400221321 in words is "forty trillion, one billion, four hundred million, two hundred twenty-one thousand, three hundred twenty-one".