10212120011112 has 64 divisors (see below), whose sum is σ = 26249496456960. Its totient is φ = 3308759884800.

The previous prime is 10212120011111. The next prime is 10212120011189. The reversal of 10212120011112 is 21111002121201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10212120011091 and 10212120011100.

It is not an unprimeable number, because it can be changed into a prime (10212120011111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18881253 + ... + 19414580.

It is an arithmetic number, because the mean of its divisors is an integer number (410148382140).

Almost surely, 2^{10212120011112} is an apocalyptic number.

10212120011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10212120011112 is an abundant number, since it is smaller than the sum of its proper divisors (16037376445848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10212120011112 is a wasteful number, since it uses less digits than its factorization.

10212120011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38296154 (or 38296150 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10212120011112 its reverse (21111002121201), we get a palindrome (31323122132313).

The spelling of 10212120011112 in words is "ten trillion, two hundred twelve billion, one hundred twenty million, eleven thousand, one hundred twelve".