12100222111012 has 48 divisors (see below), whose sum is σ = 26146938585600. Its totient is φ = 4880761850496.

The previous prime is 12100222111009. The next prime is 12100222111031. The reversal of 12100222111012 is 21011122200121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259370908 + ... + 259417555.

It is an arithmetic number, because the mean of its divisors is an integer number (544727887200).

Almost surely, 2^{12100222111012} is an apocalyptic number.

It is an amenable number.

12100222111012 is an abundant number, since it is smaller than the sum of its proper divisors (14046716474588).

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

12100222111012 is a wasteful number, since it uses less digits than its factorization.

12100222111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518788505 (or 518788489 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12100222111012 its reverse (21011122200121), we get a palindrome (33111344311133).

The spelling of 12100222111012 in words is "twelve trillion, one hundred billion, two hundred twenty-two million, one hundred eleven thousand, twelve".