21010003022012 has 48 divisors (see below), whose sum is σ = 38206834444800. Its totient is φ = 10097100646080.

The previous prime is 21010003022009. The next prime is 21010003022017. The reversal of 21010003022012 is 21022030001012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010003022017) 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, 33535289 + ... + 34156047.

It is an arithmetic number, because the mean of its divisors is an integer number (795975717600).

Almost surely, 2^{21010003022012} is an apocalyptic number.

It is an amenable number.

21010003022012 is a deficient number, since it is larger than the sum of its proper divisors (17196831422788).

21010003022012 is a wasteful number, since it uses less digits than its factorization.

21010003022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622106 (or 622104 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21010003022012 its reverse (21022030001012), we get a palindrome (42032033023024).

The spelling of 21010003022012 in words is "twenty-one trillion, ten billion, three million, twenty-two thousand, twelve".