100222221112 has 96 divisors (see below), whose sum is σ = 207063612000. Its totient is φ = 45207571968.

The previous prime is 100222221017. The next prime is 100222221133. The reversal of 100222221112 is 211122222001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101954973 + ... + 101955955.

It is an arithmetic number, because the mean of its divisors is an integer number (2156912625).

Almost surely, 2^100222221112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100222221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103531806000).

100222221112 is an abundant number, since it is smaller than the sum of its proper divisors (106841390888).

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

100222221112 is a wasteful number, since it uses less digits than its factorization.

100222221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1400 counting only the distinct ones).

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

Adding to 100222221112 its reverse (211122222001), we get a palindrome (311344443113).

The spelling of 100222221112 in words is "one hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".