21403031424022 has 4 divisors (see below), whose sum is σ = 32104547136036. Its totient is φ = 10701515712010.

The previous prime is 21403031424001. The next prime is 21403031424091. The reversal of 21403031424022 is 22042413030412.

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

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, 5350757856004 + ... + 5350757856007.

It is an arithmetic number, because the mean of its divisors is an integer number (8026136784009).

Almost surely, 2^{21403031424022} is an apocalyptic number.

21403031424022 is a deficient number, since it is larger than the sum of its proper divisors (10701515712014).

21403031424022 is a wasteful number, since it uses less digits than its factorization.

21403031424022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701515712013.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21403031424022 its reverse (22042413030412), we get a palindrome (43445444454434).

The spelling of 21403031424022 in words is "twenty-one trillion, four hundred three billion, thirty-one million, four hundred twenty-four thousand, twenty-two".