12100122222222 has 32 divisors (see below), whose sum is σ = 24230702496672. Its totient is φ = 4028299674624.

The previous prime is 12100122222217. The next prime is 12100122222233. The reversal of 12100122222222 is 22222222100121.

12100122222222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12100122222222 is a modest number, since divided by 2222222 gives 1210012 as remainder.

It is a congruent number.

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, 24948828 + ... + 25429200.

It is an arithmetic number, because the mean of its divisors is an integer number (757209453021).

Almost surely, 2^{12100122222222} is an apocalyptic number.

12100122222222 is an abundant number, since it is smaller than the sum of its proper divisors (12130580274450).

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

12100122222222 is a wasteful number, since it uses less digits than its factorization.

12100122222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485652.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12100122222222 its reverse (22222222100121), we get a palindrome (34322344322343).

The spelling of 12100122222222 in words is "twelve trillion, one hundred billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".