21012334330 has 32 divisors (see below), whose sum is σ = 40786905600. Its totient is φ = 7747866432.

The previous prime is 21012334313. The next prime is 21012334331. The reversal of 21012334330 is 3343321012.

It is not an unprimeable number, because it can be changed into a prime (21012334331) 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, 13290 + ... + 205429.

It is an arithmetic number, because the mean of its divisors is an integer number (1274590800).

Almost surely, 2^21012334330 is an apocalyptic number.

21012334330 is a deficient number, since it is larger than the sum of its proper divisors (19774571270).

21012334330 is a wasteful number, since it uses less digits than its factorization.

21012334330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219478.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21012334330 its reverse (3343321012), we get a palindrome (24355655342).

The spelling of 21012334330 in words is "twenty-one billion, twelve million, three hundred thirty-four thousand, three hundred thirty".