21323022121122 has 64 divisors (see below), whose sum is σ = 44960244645888. Its totient is φ = 6731762544000.

The previous prime is 21323022121109. The next prime is 21323022121133. The reversal of 21323022121122 is 22112122032312.

It is a junction number, because it is equal to n+sod(n) for n = 21323022121092 and 21323022121101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328413222 + ... + 328478142.

It is an arithmetic number, because the mean of its divisors is an integer number (702503822592).

Almost surely, 2^{21323022121122} is an apocalyptic number.

21323022121122 is an abundant number, since it is smaller than the sum of its proper divisors (23637222524766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21323022121122 is a wasteful number, since it uses less digits than its factorization.

21323022121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102575.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21323022121122 its reverse (22112122032312), we get a palindrome (43435144153434).

The spelling of 21323022121122 in words is "twenty-one trillion, three hundred twenty-three billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".