100011112122122 has 4 divisors (see below), whose sum is σ = 150016668183186. Its totient is φ = 50005556061060.

The previous prime is 100011112122079. The next prime is 100011112122203. The reversal of 100011112122122 is 221221211110001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 99999220001521 + 11892120601 = 9999961^2 + 109051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100011112122122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25002778030529 + ... + 25002778030532.

Almost surely, 2^{100011112122122} is an apocalyptic number.

100011112122122 is a deficient number, since it is larger than the sum of its proper divisors (50005556061064).

100011112122122 is an equidigital number, since it uses as much as digits as its factorization.

100011112122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50005556061063.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100011112122122 its reverse (221221211110001), we get a palindrome (321232323232123).

The spelling of 100011112122122 in words is "one hundred trillion, eleven billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".