21200743022 has 8 divisors (see below), whose sum is σ = 31804333176. Its totient is φ = 10599298632.

The previous prime is 21200743021. The next prime is 21200743043. The reversal of 21200743022 is 22034700212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200743021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511508 + ... + 551399.

It is an arithmetic number, because the mean of its divisors is an integer number (3975541647).

Almost surely, 2^21200743022 is an apocalyptic number.

21200743022 is a deficient number, since it is larger than the sum of its proper divisors (10603590154).

21200743022 is a wasteful number, since it uses less digits than its factorization.

21200743022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072882.

The product of its (nonzero) digits is 1344, while the sum is 23.

The spelling of 21200743022 in words is "twenty-one billion, two hundred million, seven hundred forty-three thousand, twenty-two".