100011212111012 has 24 divisors (see below), whose sum is σ = 182638724389632. Its totient is φ = 47828946915200.

The previous prime is 100011212111009. The next prime is 100011212111021. The reversal of 100011212111012 is 210111212110001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26667164 + ... + 30185427.

It is an arithmetic number, because the mean of its divisors is an integer number (7609946849568).

Almost surely, 2^{100011212111012} is an apocalyptic number.

It is an amenable number.

100011212111012 is a deficient number, since it is larger than the sum of its proper divisors (82627512278620).

100011212111012 is a wasteful number, since it uses less digits than its factorization.

100011212111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56871739 (or 56871737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100011212111012 its reverse (210111212110001), we get a palindrome (310122424221013).

The spelling of 100011212111012 in words is "one hundred trillion, eleven billion, two hundred twelve million, one hundred eleven thousand, twelve".