21303244022 has 16 divisors (see below), whose sum is σ = 32440269312. Its totient is φ = 10489904040.

The previous prime is 21303244021. The next prime is 21303244037. The reversal of 21303244022 is 22044230312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303244021) 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, 553703 + ... + 590925.

It is an arithmetic number, because the mean of its divisors is an integer number (2027516832).

Almost surely, 2^21303244022 is an apocalyptic number.

21303244022 is a deficient number, since it is larger than the sum of its proper divisors (11137025290).

21303244022 is a wasteful number, since it uses less digits than its factorization.

21303244022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41563.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21303244022 its reverse (22044230312), we get a palindrome (43347474334).

The spelling of 21303244022 in words is "twenty-one billion, three hundred three million, two hundred forty-four thousand, twenty-two".