21002210200012 has 12 divisors (see below), whose sum is σ = 38021242603680. Its totient is φ = 10138998027536.

The previous prime is 21002210199959. The next prime is 21002210200019. The reversal of 21002210200012 is 21000201220012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21002210199965 and 21002210200001.

It is not an unprimeable number, because it can be changed into a prime (21002210200019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90526767988 + ... + 90526768219.

It is an arithmetic number, because the mean of its divisors is an integer number (3168436883640).

Almost surely, 2^{21002210200012} is an apocalyptic number.

It is an amenable number.

21002210200012 is a deficient number, since it is larger than the sum of its proper divisors (17019032403668).

21002210200012 is a wasteful number, since it uses less digits than its factorization.

21002210200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181053536240 (or 181053536238 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21002210200012 its reverse (21000201220012), we get a palindrome (42002411420024).

The spelling of 21002210200012 in words is "twenty-one trillion, two billion, two hundred ten million, two hundred thousand, twelve".