21330303222042 has 16 divisors (see below), whose sum is σ = 47400673826880. Its totient is φ = 7110101073996.

The previous prime is 21330303222017. The next prime is 21330303222103. The reversal of 21330303222042 is 24022230303312.

21330303222042 is a `hidden beast` number, since 2 + 1 + 330 + 3 + 0 + 322 + 2 + 0 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21330303221997 and 21330303222015.

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 7 ways as a sum of consecutive naturals, for example, 197502807558 + ... + 197502807665.

It is an arithmetic number, because the mean of its divisors is an integer number (2962542114180).

Almost surely, 2^{21330303222042} is an apocalyptic number.

21330303222042 is an abundant number, since it is smaller than the sum of its proper divisors (26070370604838).

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

21330303222042 is a wasteful number, since it uses less digits than its factorization.

21330303222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395005615234 (or 395005615228 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21330303222042 its reverse (24022230303312), we get a palindrome (45352533525354).

The spelling of 21330303222042 in words is "twenty-one trillion, three hundred thirty billion, three hundred three million, two hundred twenty-two thousand, forty-two".