21063052022 has 4 divisors (see below), whose sum is σ = 31594578036. Its totient is φ = 10531526010.

The previous prime is 21063052009. The next prime is 21063052027. The reversal of 21063052022 is 22025036012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21063052027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265763004 + ... + 5265763007.

It is an arithmetic number, because the mean of its divisors is an integer number (7898644509).

Almost surely, 2^21063052022 is an apocalyptic number.

21063052022 is a deficient number, since it is larger than the sum of its proper divisors (10531526014).

21063052022 is a wasteful number, since it uses less digits than its factorization.

21063052022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10531526013.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21063052022 its reverse (22025036012), we get a palindrome (43088088034).

The spelling of 21063052022 in words is "twenty-one billion, sixty-three million, fifty-two thousand, twenty-two".