21232333330 has 32 divisors (see below), whose sum is σ = 41164853184. Its totient is φ = 7838337216.

The previous prime is 21232333307. The next prime is 21232333333. The reversal of 21232333330 is 3333323212.

It is a junction number, because it is equal to n+sod(n) for n = 21232333295 and 21232333304.

It is not an unprimeable number, because it can be changed into a prime (21232333333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187517 + ... + 1205263.

It is an arithmetic number, because the mean of its divisors is an integer number (1286401662).

Almost surely, 2^21232333330 is an apocalyptic number.

21232333330 is a deficient number, since it is larger than the sum of its proper divisors (19932519854).

21232333330 is a wasteful number, since it uses less digits than its factorization.

21232333330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26970.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 21232333330 its reverse (3333323212), we get a palindrome (24565656542).

The spelling of 21232333330 in words is "twenty-one billion, two hundred thirty-two million, three hundred thirty-three thousand, three hundred thirty".