100111121121122 has 4 divisors (see below), whose sum is σ = 150166681681686. Its totient is φ = 50055560560560.

The previous prime is 100111121121113. The next prime is 100111121121197. The reversal of 100111121121122 is 221121121111001.

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., 100110210349081 + 910772041 = 10005509^2 + 30179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100111121121122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25027780280279 + ... + 25027780280282.

Almost surely, 2^{100111121121122} is an apocalyptic number.

100111121121122 is a deficient number, since it is larger than the sum of its proper divisors (50055560560564).

100111121121122 is an equidigital number, since it uses as much as digits as its factorization.

100111121121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50055560560563.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 100111121121122 its reverse (221121121111001), we get a palindrome (321232242232123).

The spelling of 100111121121122 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".