21010201012 has 12 divisors (see below), whose sum is σ = 36775702656. Its totient is φ = 10502857400.

The previous prime is 21010200983. The next prime is 21010201013.

21010201012 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 21010201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010201013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539614 + ... + 577237.

It is an arithmetic number, because the mean of its divisors is an integer number (3064641888).

Almost surely, 2^21010201012 is an apocalyptic number.

It is an amenable number.

21010201012 is a deficient number, since it is larger than the sum of its proper divisors (15765501644).

21010201012 is a wasteful number, since it uses less digits than its factorization.

21010201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121558 (or 1121556 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The spelling of 21010201012 in words is "twenty-one billion, ten million, two hundred one thousand, twelve".