10112311212 has 24 divisors (see below), whose sum is σ = 24983357616. Its totient is φ = 3172489728.

The previous prime is 10112311211. The next prime is 10112311241. The reversal of 10112311212 is 21211321101.

It is a junction number, because it is equal to n+sod(n) for n = 10112311191 and 10112311200.

It is not an unprimeable number, because it can be changed into a prime (10112311211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24784873 + ... + 24785280.

It is an arithmetic number, because the mean of its divisors is an integer number (1040973234).

Almost surely, 2^10112311212 is an apocalyptic number.

10112311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10112311212 is an abundant number, since it is smaller than the sum of its proper divisors (14871046404).

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

10112311212 is a wasteful number, since it uses less digits than its factorization.

10112311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49570177 (or 49570175 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10112311212 its reverse (21211321101), we get a palindrome (31323632313).

The spelling of 10112311212 in words is "ten billion, one hundred twelve million, three hundred eleven thousand, two hundred twelve".