21044202022 has 8 divisors (see below), whose sum is σ = 31682784672. Its totient is φ = 10483273800.

The previous prime is 21044201987. The next prime is 21044202071. The reversal of 21044202022 is 22020244012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19412929 + ... + 19414012.

It is an arithmetic number, because the mean of its divisors is an integer number (3960348084).

Almost surely, 2^21044202022 is an apocalyptic number.

21044202022 is a deficient number, since it is larger than the sum of its proper divisors (10638582650).

21044202022 is a wasteful number, since it uses less digits than its factorization.

21044202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38827214.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 21044202022 its reverse (22020244012), we get a palindrome (43064446034).

The spelling of 21044202022 in words is "twenty-one billion, forty-four million, two hundred two thousand, twenty-two".