21032121233332 has 24 divisors (see below), whose sum is σ = 40635993277152. Its totient is φ = 9444873717600.

The previous prime is 21032121233323. The next prime is 21032121233339. The reversal of 21032121233332 is 23333212123012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21032121233332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032121233339) 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 7 ways as a sum of consecutive naturals, for example, 2879531019 + ... + 2879538322.

It is an arithmetic number, because the mean of its divisors is an integer number (1693166386548).

Almost surely, 2^{21032121233332} is an apocalyptic number.

21032121233332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21032121233332 is a deficient number, since it is larger than the sum of its proper divisors (19603872043820).

21032121233332 is a wasteful number, since it uses less digits than its factorization.

21032121233332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759069439 (or 5759069437 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21032121233332 its reverse (23333212123012), we get a palindrome (44365333356344).

The spelling of 21032121233332 in words is "twenty-one trillion, thirty-two billion, one hundred twenty-one million, two hundred thirty-three thousand, three hundred thirty-two".