21234200246 has 8 divisors (see below), whose sum is σ = 36401486160. Its totient is φ = 9100371528.

The previous prime is 21234200227. The next prime is 21234200261. The reversal of 21234200246 is 64200243212.

It is a happy number.

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

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, 758364281 + ... + 758364308.

It is an arithmetic number, because the mean of its divisors is an integer number (4550185770).

Almost surely, 2^21234200246 is an apocalyptic number.

21234200246 is a deficient number, since it is larger than the sum of its proper divisors (15167285914).

21234200246 is a wasteful number, since it uses less digits than its factorization.

21234200246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516728598.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21234200246 its reverse (64200243212), we get a palindrome (85434443458).

The spelling of 21234200246 in words is "twenty-one billion, two hundred thirty-four million, two hundred thousand, two hundred forty-six".