220423542234 has 32 divisors (see below), whose sum is σ = 504354003840. Its totient is φ = 62912059392.

The previous prime is 220423542167. The next prime is 220423542253. The reversal of 220423542234 is 432245324022.

It is a junction number, because it is equal to n+sod(n) for n = 220423542195 and 220423542204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2713479 + ... + 2793530.

It is an arithmetic number, because the mean of its divisors is an integer number (15761062620).

Almost surely, 2^220423542234 is an apocalyptic number.

220423542234 is an abundant number, since it is smaller than the sum of its proper divisors (283930461606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220423542234 is a wasteful number, since it uses less digits than its factorization.

220423542234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507974.

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 220423542234 its reverse (432245324022), we get a palindrome (652668866256).

The spelling of 220423542234 in words is "two hundred twenty billion, four hundred twenty-three million, five hundred forty-two thousand, two hundred thirty-four".