100111221112122 has 48 divisors (see below), whose sum is σ = 243021834068832. Its totient is φ = 29516821947360.

The previous prime is 100111221112103. The next prime is 100111221112127. The reversal of 100111221112122 is 221211122111001.

It is a happy number.

100111221112122 is a `hidden beast` number, since 100 + 111 + 221 + 112 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100111221112095 and 100111221112104.

It is not an unprimeable number, because it can be changed into a prime (100111221112127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6832590348 + ... + 6832604999.

It is an arithmetic number, because the mean of its divisors is an integer number (5062954876434).

Almost surely, 2^{100111221112122} is an apocalyptic number.

100111221112122 is an abundant number, since it is smaller than the sum of its proper divisors (142910612956710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100111221112122 is a wasteful number, since it uses less digits than its factorization.

100111221112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665195403 (or 13665195400 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 100111221112122 its reverse (221211122111001), we get a palindrome (321322343223123).

The spelling of 100111221112122 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".