405122440111 has 8 divisors (see below), whose sum is σ = 408110691024. Its totient is φ = 402134640960.

The previous prime is 405122440049. The next prime is 405122440133. The reversal of 405122440111 is 111044221504.

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 405122440111 - 2³³ = 396532505519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405122440511) 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, 1807041 + ... + 2018821.

It is an arithmetic number, because the mean of its divisors is an integer number (51013836378).

Almost surely, 2^405122440111 is an apocalyptic number.

405122440111 is a deficient number, since it is larger than the sum of its proper divisors (2988250913).

405122440111 is a wasteful number, since it uses less digits than its factorization.

405122440111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225881.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 405122440111 its reverse (111044221504), we get a palindrome (516166661615).

The spelling of 405122440111 in words is "four hundred five billion, one hundred twenty-two million, four hundred forty thousand, one hundred eleven".