10111210212012 has 192 divisors, whose sum is σ = 29858982902784. Its totient is φ = 2591412341760.

The previous prime is 10111210212001. The next prime is 10111210212079. The reversal of 10111210212012 is 21021201211101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10111210211982 and 10111210212000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32613358 + ... + 32921930.

It is an arithmetic number, because the mean of its divisors is an integer number (155515535952).

Almost surely, 2^{10111210212012} is an apocalyptic number.

10111210212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10111210212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929491451392).

10111210212012 is an abundant number, since it is smaller than the sum of its proper divisors (19747772690772).

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

10111210212012 is a wasteful number, since it uses less digits than its factorization.

10111210212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309448 (or 309446 counting only the distinct ones).

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

Adding to 10111210212012 its reverse (21021201211101), we get a palindrome (31132411423113).

The spelling of 10111210212012 in words is "ten trillion, one hundred eleven billion, two hundred ten million, two hundred twelve thousand, twelve".