21330133222 has 4 divisors (see below), whose sum is σ = 31995199836. Its totient is φ = 10665066610.

The previous prime is 21330133213. The next prime is 21330133241. The reversal of 21330133222 is 22233103312.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21330133193 and 21330133202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5332533304 + ... + 5332533307.

It is an arithmetic number, because the mean of its divisors is an integer number (7998799959).

Almost surely, 2^21330133222 is an apocalyptic number.

21330133222 is a deficient number, since it is larger than the sum of its proper divisors (10665066614).

21330133222 is a wasteful number, since it uses less digits than its factorization.

21330133222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10665066613.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21330133222 its reverse (22233103312), we get a palindrome (43563236534).

The spelling of 21330133222 in words is "twenty-one billion, three hundred thirty million, one hundred thirty-three thousand, two hundred twenty-two".