21321122121032 has 16 divisors (see below), whose sum is σ = 39977296547760. Its totient is φ = 10660509708304.

The previous prime is 21321122121029. The next prime is 21321122121083. The reversal of 21321122121032 is 23012122112312.

It is a junction number, because it is equal to n+sod(n) for n = 21321122120989 and 21321122121007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4624958 + ... + 8002029.

It is an arithmetic number, because the mean of its divisors is an integer number (2498581034235).

Almost surely, 2^{21321122121032} is an apocalyptic number.

It is an amenable number.

21321122121032 is a deficient number, since it is larger than the sum of its proper divisors (18656174426728).

21321122121032 is a wasteful number, since it uses less digits than its factorization.

21321122121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838060 (or 12838056 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21321122121032 its reverse (23012122112312), we get a palindrome (44333244233344).

The spelling of 21321122121032 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-one thousand, thirty-two".