100111022222122 has 4 divisors (see below), whose sum is σ = 150166533333186. Its totient is φ = 50055511111060.

The previous prime is 100111022222117. The next prime is 100111022222143. The reversal of 100111022222122 is 221222220111001.

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., 56386117246761 + 43724904975361 = 7509069^2 + 6612481^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100111022222122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25027755555529 + ... + 25027755555532.

Almost surely, 2^{100111022222122} is an apocalyptic number.

100111022222122 is a deficient number, since it is larger than the sum of its proper divisors (50055511111064).

100111022222122 is an equidigital number, since it uses as much as digits as its factorization.

100111022222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50055511111063.

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

Adding to 100111022222122 its reverse (221222220111001), we get a palindrome (321333242333123).

The spelling of 100111022222122 in words is "one hundred trillion, one hundred eleven billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".