21110210133230 has 48 divisors (see below), whose sum is σ = 38836058090976. Its totient is φ = 8261867837760.

The previous prime is 21110210133223. The next prime is 21110210133239. The reversal of 21110210133230 is 3233101201112.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110210133239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72110312 + ... + 72402468.

It is an arithmetic number, because the mean of its divisors is an integer number (809084543562).

Almost surely, 2^{21110210133230} is an apocalyptic number.

21110210133230 is a deficient number, since it is larger than the sum of its proper divisors (17725847957746).

21110210133230 is a wasteful number, since it uses less digits than its factorization.

21110210133230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295529 (or 295482 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21110210133230 its reverse (3233101201112), we get a palindrome (24343311334342).

The spelling of 21110210133230 in words is "twenty-one trillion, one hundred ten billion, two hundred ten million, one hundred thirty-three thousand, two hundred thirty".