21223345252234 has 8 divisors (see below), whose sum is σ = 32085687310848. Its totient is φ = 10528116148620.

The previous prime is 21223345252217. The next prime is 21223345252247. The reversal of 21223345252234 is 43225254332212.

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

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, 41778238432 + ... + 41778238939.

It is an arithmetic number, because the mean of its divisors is an integer number (4010710913856).

Almost surely, 2^{21223345252234} is an apocalyptic number.

21223345252234 is a deficient number, since it is larger than the sum of its proper divisors (10862342058614).

21223345252234 is a wasteful number, since it uses less digits than its factorization.

21223345252234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83556477500.

The product of its digits is 691200, while the sum is 40.

Adding to 21223345252234 its reverse (43225254332212), we get a palindrome (64448599584446).

The spelling of 21223345252234 in words is "twenty-one trillion, two hundred twenty-three billion, three hundred forty-five million, two hundred fifty-two thousand, two hundred thirty-four".