21212201002010 has 16 divisors (see below), whose sum is σ = 40427959557096. Its totient is φ = 7985769788928.

The previous prime is 21212201002001. The next prime is 21212201002019. The reversal of 21212201002010 is 1020010221212.

It is an interprime number because it is at equal distance from previous prime (21212201002001) and next prime (21212201002019).

It can be written as a sum of positive squares in 4 ways, for example, as 20253519152881 + 958681849129 = 4500391^2 + 979123^2 .

It is not an unprimeable number, because it can be changed into a prime (21212201002019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62388826307 + ... + 62388826646.

Almost surely, 2^{21212201002010} is an apocalyptic number.

21212201002010 is a deficient number, since it is larger than the sum of its proper divisors (19215758555086).

21212201002010 is a wasteful number, since it uses less digits than its factorization.

21212201002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124777652977.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21212201002010 its reverse (1020010221212), we get a palindrome (22232211223222).

The spelling of 21212201002010 in words is "twenty-one trillion, two hundred twelve billion, two hundred one million, two thousand, ten".