21332221031330 has 16 divisors (see below), whose sum is σ = 41888724934464. Its totient is φ = 7757171284080.

The previous prime is 21332221031323. The next prime is 21332221031347. The reversal of 21332221031330 is 3313012223312.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21332221031330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96964640942 + ... + 96964641161.

It is an arithmetic number, because the mean of its divisors is an integer number (2618045308404).

Almost surely, 2^{21332221031330} is an apocalyptic number.

21332221031330 is a deficient number, since it is larger than the sum of its proper divisors (20556503903134).

21332221031330 is a wasteful number, since it uses less digits than its factorization.

21332221031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193929282121.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21332221031330 its reverse (3313012223312), we get a palindrome (24645233254642).

The spelling of 21332221031330 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred twenty-one million, thirty-one thousand, three hundred thirty".