10111212111112 has 64 divisors (see below), whose sum is σ = 22287404764800. Its totient is φ = 4210984074240.

The previous prime is 10111212111097. The next prime is 10111212111137. The reversal of 10111212111112 is 21111121211101.

It is a super-2 number, since 2×10111212111112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17547537 + ... + 18114592.

It is an arithmetic number, because the mean of its divisors is an integer number (348240699450).

Almost surely, 2^{10111212111112} is an apocalyptic number.

It is an amenable number.

10111212111112 is an abundant number, since it is smaller than the sum of its proper divisors (12176192653688).

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

10111212111112 is a wasteful number, since it uses less digits than its factorization.

10111212111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35662286 (or 35662282 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 10111212111112 its reverse (21111121211101), we get a palindrome (31222333322213).

The spelling of 10111212111112 in words is "ten trillion, one hundred eleven billion, two hundred twelve million, one hundred eleven thousand, one hundred twelve".