100111022220122 has 4 divisors (see below), whose sum is σ = 150166533330186. Its totient is φ = 50055511110060.

The previous prime is 100111022220113. The next prime is 100111022220163. The reversal of 100111022220122 is 221022220111001.

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., 52301693824081 + 47809328396041 = 7231991^2 + 6914429^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100111022220122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25027755555029 + ... + 25027755555032.

Almost surely, 2^{100111022220122} is an apocalyptic number.

100111022220122 is a deficient number, since it is larger than the sum of its proper divisors (50055511110064).

100111022220122 is an equidigital number, since it uses as much as digits as its factorization.

100111022220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50055511110063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100111022220122 its reverse (221022220111001), we get a palindrome (321133242331123).

The spelling of 100111022220122 in words is "one hundred trillion, one hundred eleven billion, twenty-two million, two hundred twenty thousand, one hundred twenty-two".