10111212112012 has 36 divisors (see below), whose sum is σ = 19722668631624. Its totient is φ = 4498218111040.

The previous prime is 10111212111983. The next prime is 10111212112039. The reversal of 10111212112012 is 21021121211101.

It is a super-2 number, since 2×10111212112012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51917353 + ... + 52111744.

It is an arithmetic number, because the mean of its divisors is an integer number (547851906434).

Almost surely, 2^{10111212112012} is an apocalyptic number.

It is an amenable number.

10111212112012 is a deficient number, since it is larger than the sum of its proper divisors (9611456519612).

10111212112012 is a wasteful number, since it uses less digits than its factorization.

10111212112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104029206 (or 104029157 counting only the distinct ones).

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

Adding to 10111212112012 its reverse (21021121211101), we get a palindrome (31132333323113).

The spelling of 10111212112012 in words is "ten trillion, one hundred eleven billion, two hundred twelve million, one hundred twelve thousand, twelve".