12210010021012 has 6 divisors (see below), whose sum is σ = 21367517536778. Its totient is φ = 6105005010504.

The previous prime is 12210010020977. The next prime is 12210010021021. The reversal of 12210010021012 is 21012001001221.

It can be written as a sum of positive squares in only one way, i.e., 8581876506256 + 3628133514756 = 2929484^2 + 1904766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12210010020983 and 12210010021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526251252623 + ... + 1526251252630.

Almost surely, 2^{12210010021012} is an apocalyptic number.

It is an amenable number.

12210010021012 is a deficient number, since it is larger than the sum of its proper divisors (9157507515766).

12210010021012 is a wasteful number, since it uses less digits than its factorization.

12210010021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052502505257 (or 3052502505255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12210010021012 its reverse (21012001001221), we get a palindrome (33222011022233).

The spelling of 12210010021012 in words is "twelve trillion, two hundred ten billion, ten million, twenty-one thousand, twelve".