220042412405 has 4 divisors (see below), whose sum is σ = 264050894892. Its totient is φ = 176033929920.

The previous prime is 220042412363. The next prime is 220042412441. The reversal of 220042412405 is 504214240022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102405760081 + 117636652324 = 320009^2 + 342982^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220042412405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22004241236 + ... + 22004241245.

It is an arithmetic number, because the mean of its divisors is an integer number (66012723723).

Almost surely, 2^220042412405 is an apocalyptic number.

It is an amenable number.

220042412405 is a deficient number, since it is larger than the sum of its proper divisors (44008482487).

220042412405 is an equidigital number, since it uses as much as digits as its factorization.

220042412405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44008482486.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 220042412405 its reverse (504214240022), we get a palindrome (724256652427).

The spelling of 220042412405 in words is "two hundred twenty billion, forty-two million, four hundred twelve thousand, four hundred five".