405321222145 has 8 divisors (see below), whose sum is σ = 555869104704. Its totient is φ = 277934552304.

The previous prime is 405321222109. The next prime is 405321222151. The reversal of 405321222145 is 541222123504.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 405321222145 - 2⁹ = 405321221633 is a prime.

It is a super-2 number, since 2×405321222145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5790303139 + ... + 5790303208.

It is an arithmetic number, because the mean of its divisors is an integer number (69483638088).

Almost surely, 2^405321222145 is an apocalyptic number.

It is an amenable number.

405321222145 is a deficient number, since it is larger than the sum of its proper divisors (150547882559).

405321222145 is a wasteful number, since it uses less digits than its factorization.

405321222145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11580606359.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 405321222145 its reverse (541222123504), we get a palindrome (946543345649).

The spelling of 405321222145 in words is "four hundred five billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred forty-five".