100222320312 has 24 divisors (see below), whose sum is σ = 271435451040. Its totient is φ = 33407440080.

The previous prime is 100222320299. The next prime is 100222320329. The reversal of 100222320312 is 213023222001.

100222320312 is a `hidden beast` number, since 10 + 0 + 2 + 22 + 320 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×100222320312² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695988264 + ... + 695988407.

It is an arithmetic number, because the mean of its divisors is an integer number (11309810460).

Almost surely, 2^100222320312 is an apocalyptic number.

100222320312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100222320312 is an abundant number, since it is smaller than the sum of its proper divisors (171213130728).

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

100222320312 is a wasteful number, since it uses less digits than its factorization.

100222320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391976683 (or 1391976676 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 100222320312 its reverse (213023222001), we get a palindrome (313245542313).

The spelling of 100222320312 in words is "one hundred billion, two hundred twenty-two million, three hundred twenty thousand, three hundred twelve".