223421022434 has 4 divisors (see below), whose sum is σ = 335131533654. Its totient is φ = 111710511216.

The previous prime is 223421022413. The next prime is 223421022497. The reversal of 223421022434 is 434220124322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434220124322 = 2 ⋅217110062161.

It can be written as a sum of positive squares in only one way, i.e., 190578521809 + 32842500625 = 436553^2 + 181225^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223421022397 and 223421022406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55855255607 + ... + 55855255610.

Almost surely, 2^223421022434 is an apocalyptic number.

223421022434 is a deficient number, since it is larger than the sum of its proper divisors (111710511220).

223421022434 is a wasteful number, since it uses less digits than its factorization.

223421022434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111710511219.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 223421022434 its reverse (434220124322), we get a palindrome (657641146756).

The spelling of 223421022434 in words is "two hundred twenty-three billion, four hundred twenty-one million, twenty-two thousand, four hundred thirty-four".