100222111121 has 8 divisors (see below), whose sum is σ = 111659451264. Its totient is φ = 89172477520.

The previous prime is 100222111079. The next prime is 100222111127. The reversal of 100222111121 is 121111222001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100222111121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222111096 and 100222111105.

It is not an unprimeable number, because it can be changed into a prime (100222111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96926090 + ... + 96927123.

It is an arithmetic number, because the mean of its divisors is an integer number (13957431408).

Almost surely, 2^100222111121 is an apocalyptic number.

100222111121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100222111121 is a deficient number, since it is larger than the sum of its proper divisors (11437340143).

100222111121 is a wasteful number, since it uses less digits than its factorization.

100222111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193853271.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100222111121 its reverse (121111222001), we get a palindrome (221333333122).

The spelling of 100222111121 in words is "one hundred billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty-one".