21302020020022 has 16 divisors (see below), whose sum is σ = 36519483015072. Its totient is φ = 9129003549120.

The previous prime is 21302020020013. The next prime is 21302020020049. The reversal of 21302020020022 is 22002002020312.

It is a junction number, because it is equal to n+sod(n) for n = 21302020019978 and 21302020020005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35828143 + ... + 36417850.

It is an arithmetic number, because the mean of its divisors is an integer number (2282467688442).

Almost surely, 2^{21302020020022} is an apocalyptic number.

21302020020022 is a deficient number, since it is larger than the sum of its proper divisors (15217462995050).

21302020020022 is a wasteful number, since it uses less digits than its factorization.

21302020020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72267063.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21302020020022 its reverse (22002002020312), we get a palindrome (43304022040334).

The spelling of 21302020020022 in words is "twenty-one trillion, three hundred two billion, twenty million, twenty thousand, twenty-two".