222102100 has 36 divisors (see below), whose sum is σ = 525778848. Its totient is φ = 80764000.

The previous prime is 222102031. The next prime is 222102121. The reversal of 222102100 is 1201222.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99856 + ... + 102055.

It is an arithmetic number, because the mean of its divisors is an integer number (14604968).

Almost surely, 2^222102100 is an apocalyptic number.

222102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102100 is an abundant number, since it is smaller than the sum of its proper divisors (303676748).

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

222102100 is a wasteful number, since it uses less digits than its factorization.

222102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201936 (or 201929 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 222102100 is about 14903.0902835620. The cubic root of 222102100 is about 605.5977063247.

Adding to 222102100 its reverse (1201222), we get a palindrome (223303322).

It can be divided in two parts, 22210 and 2100, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 222102100 in words is "two hundred twenty-two million, one hundred two thousand, one hundred".