222308100 has 243 divisors, whose sum is σ = 822155061.
Its totient is φ = 50097600.
The previous prime is 222308083. The next prime is 222308111. The reversal of 222308100 is 1803222.
It is a happy number.
The square root of 222308100 is 14910.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 80030916 + 142277184 = 8946^2 + 11928^2
It is a super-2 number, since 2×2223081002 = 98841782651220000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3131065 + ... + 3131135.
Almost surely, 2222308100 is an apocalyptic number.
222308100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
222308100 is the 14910-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 222308100
222308100 is an abundant number, since it is smaller than the sum of its proper divisors (599846961).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222308100 is a wasteful number, since it uses less digits than its factorization.
222308100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 176 (or 88 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The cubic root of 222308100 is about 605.7848793678.
The spelling of 222308100 in words is "two hundred twenty-two million, three hundred eight thousand, one hundred".