100222320 has 80 divisors (see below), whose sum is σ = 338942592. Its totient is φ = 24295680.

The previous prime is 100222319. The next prime is 100222333. The reversal of 100222320 is 23222001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100222296 and 100222305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16342 + ... + 21621.

Almost surely, 2^100222320 is an apocalyptic number.

100222320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222320 is an abundant number, since it is smaller than the sum of its proper divisors (238720272).

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

100222320 is a wasteful number, since it uses less digits than its factorization.

100222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37990 (or 37984 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 100222320 is about 10011.1098285854. The cubic root of 100222320 is about 464.5026014455.

Adding to 100222320 its reverse (23222001), we get a palindrome (123444321).

The spelling of 100222320 in words is "one hundred million, two hundred twenty-two thousand, three hundred twenty".