100222122112 has 32 divisors (see below), whose sum is σ = 228184297920. Its totient is φ = 42952337664.

The previous prime is 100222122109. The next prime is 100222122131. The reversal of 100222122112 is 211221222001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55926628 + ... + 55928419.

It is an arithmetic number, because the mean of its divisors is an integer number (7130759310).

Almost surely, 2^100222122112 is an apocalyptic number.

It is an amenable number.

100222122112 is an abundant number, since it is smaller than the sum of its proper divisors (127962175808).

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

100222122112 is an equidigital number, since it uses as much as digits as its factorization.

100222122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111855068 (or 111855056 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100222122112 its reverse (211221222001), we get a palindrome (311443344113).

The spelling of 100222122112 in words is "one hundred billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twelve".