21203022223324 has 24 divisors (see below), whose sum is σ = 40642709945040. Its totient is φ = 9633827540736.

The previous prime is 21203022223321. The next prime is 21203022223333. The reversal of 21203022223324 is 42332222030212.

It is a junction number, because it is equal to n+sod(n) for n = 21203022223292 and 21203022223301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21203022223321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5376017862 + ... + 5376021805.

It is an arithmetic number, because the mean of its divisors is an integer number (1693446247710).

Almost surely, 2^{21203022223324} is an apocalyptic number.

It is an amenable number.

21203022223324 is a deficient number, since it is larger than the sum of its proper divisors (19439687721716).

21203022223324 is a wasteful number, since it uses less digits than its factorization.

21203022223324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10752039717 (or 10752039715 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 21203022223324 its reverse (42332222030212), we get a palindrome (63535244253536).

The spelling of 21203022223324 in words is "twenty-one trillion, two hundred three billion, twenty-two million, two hundred twenty-three thousand, three hundred twenty-four".