21232246212238 has 8 divisors (see below), whose sum is σ = 31848652996488. Its totient is φ = 10616028546744.

The previous prime is 21232246212169. The next prime is 21232246212239. The reversal of 21232246212238 is 83221264223212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21232246212238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232246212239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46998681 + ... + 47448292.

It is an arithmetic number, because the mean of its divisors is an integer number (3981081624561).

Almost surely, 2^{21232246212238} is an apocalyptic number.

21232246212238 is a deficient number, since it is larger than the sum of its proper divisors (10616406784250).

21232246212238 is a wasteful number, since it uses less digits than its factorization.

21232246212238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94559378.

The product of its digits is 221184, while the sum is 40.

The spelling of 21232246212238 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred forty-six million, two hundred twelve thousand, two hundred thirty-eight".