100222344400 has 60 divisors (see below), whose sum is σ = 241478419392. Its totient is φ = 39973352320.

The previous prime is 100222344331. The next prime is 100222344401. The reversal of 100222344400 is 4443222001.

It is a happy number.

It is a super-2 number, since 2×100222344400² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222344401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222232 + ... + 499831.

Almost surely, 2^100222344400 is an apocalyptic number.

100222344400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222344400 is an abundant number, since it is smaller than the sum of its proper divisors (141256074992).

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

100222344400 is a wasteful number, since it uses less digits than its factorization.

100222344400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722428 (or 722417 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 100222344400 its reverse (4443222001), we get a palindrome (104665566401).

The spelling of 100222344400 in words is "one hundred billion, two hundred twenty-two million, three hundred forty-four thousand, four hundred".