21021222300013 has 16 divisors (see below), whose sum is σ = 22645532722176. Its totient is φ = 19397954885760.

The previous prime is 21021222299953. The next prime is 21021222300059. The reversal of 21021222300013 is 31000322212012.

It is a cyclic number.

It is not a de Polignac number, because 21021222300013 - 2¹⁷ = 21021222168941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021222303013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681584473 + ... + 681615313.

It is an arithmetic number, because the mean of its divisors is an integer number (1415345795136).

Almost surely, 2^{21021222300013} is an apocalyptic number.

It is an amenable number.

21021222300013 is a deficient number, since it is larger than the sum of its proper divisors (1624310422163).

21021222300013 is a wasteful number, since it uses less digits than its factorization.

21021222300013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46044.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21021222300013 its reverse (31000322212012), we get a palindrome (52021544512025).

The spelling of 21021222300013 in words is "twenty-one trillion, twenty-one billion, two hundred twenty-two million, three hundred thousand, thirteen".