21234200226 has 8 divisors (see below), whose sum is σ = 42468400464. Its totient is φ = 7078066740.

The previous prime is 21234200219. The next prime is 21234200227. The reversal of 21234200226 is 62200243212.

It is a happy number.

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

21234200226 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21234200196 and 21234200205.

It is not an unprimeable number, because it can be changed into a prime (21234200227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769516680 + ... + 1769516691.

It is an arithmetic number, because the mean of its divisors is an integer number (5308550058).

Almost surely, 2^21234200226 is an apocalyptic number.

21234200226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21234200226 is a wasteful number, since it uses less digits than its factorization.

21234200226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539033376.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21234200226 its reverse (62200243212), we get a palindrome (83434443438).

The spelling of 21234200226 in words is "twenty-one billion, two hundred thirty-four million, two hundred thousand, two hundred twenty-six".