10121211100012 has 12 divisors (see below), whose sum is σ = 17712221997736. Its totient is φ = 5060576243520.

The previous prime is 10121211100001. The next prime is 10121211100031. The reversal of 10121211100012 is 21000111212101.

It is a happy number.

It is a super-2 number, since 2×10121211100012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10121211099965 and 10121211100001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6540189 + ... + 7938292.

Almost surely, 2^{10121211100012} is an apocalyptic number.

It is an amenable number.

10121211100012 is a deficient number, since it is larger than the sum of its proper divisors (7591010897724).

10121211100012 is a wasteful number, since it uses less digits than its factorization.

10121211100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14653248 (or 14653246 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10121211100012 its reverse (21000111212101), we get a palindrome (31121322312113).

The spelling of 10121211100012 in words is "ten trillion, one hundred twenty-one billion, two hundred eleven million, one hundred thousand, twelve".