12122222100112 has 10 divisors (see below), whose sum is σ = 23486805318998. Its totient is φ = 6061111050048.

The previous prime is 12122222100049. The next prime is 12122222100161. The reversal of 12122222100112 is 21100122222121.

It can be written as a sum of positive squares in only one way, i.e., 8414733465856 + 3707488634256 = 2900816^2 + 1925484^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12122222100112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378819440613 + ... + 378819440644.

Almost surely, 2^{12122222100112} is an apocalyptic number.

It is an amenable number.

12122222100112 is a deficient number, since it is larger than the sum of its proper divisors (11364583218886).

12122222100112 is an equidigital number, since it uses as much as digits as its factorization.

12122222100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757638881265 (or 757638881259 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122222100112 its reverse (21100122222121), we get a palindrome (33222344322233).

The spelling of 12122222100112 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred thousand, one hundred twelve".