10212121220012 has 6 divisors (see below), whose sum is σ = 17871212135028. Its totient is φ = 5106060610004.

The previous prime is 10212121219999. The next prime is 10212121220023. The reversal of 10212121220012 is 21002212121201.

It is a super-3 number, since 3×10212121220012³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1276515152498 + ... + 1276515152505.

It is an arithmetic number, because the mean of its divisors is an integer number (2978535355838).

Almost surely, 2^{10212121220012} is an apocalyptic number.

It is an amenable number.

10212121220012 is a deficient number, since it is larger than the sum of its proper divisors (7659090915016).

10212121220012 is a wasteful number, since it uses less digits than its factorization.

10212121220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553030305007 (or 2553030305005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10212121220012 its reverse (21002212121201), we get a palindrome (31214333341213).

The spelling of 10212121220012 in words is "ten trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, twelve".