222002100 has 72 divisors (see below), whose sum is σ = 713704320. Its totient is φ = 59199840.

The previous prime is 222002089. The next prime is 222002101. The reversal of 222002100 is 1200222.

222002100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38412 + ... + 43811.

It is an arithmetic number, because the mean of its divisors is an integer number (9912560).

Almost surely, 2^222002100 is an apocalyptic number.

222002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002100 is an abundant number, since it is smaller than the sum of its proper divisors (491702220).

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

222002100 is a wasteful number, since it uses less digits than its factorization.

222002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82246 (or 82233 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 222002100 is about 14899.7348969705. The cubic root of 222002100 is about 605.5068038948.

Adding to 222002100 its reverse (1200222), we get a palindrome (223202322).

The spelling of 222002100 in words is "two hundred twenty-two million, two thousand, one hundred".