222102002100 has 72 divisors (see below), whose sum is σ = 701034693408. Its totient is φ = 53842908800.

The previous prime is 222102002099. The next prime is 222102002113. The reversal of 222102002100 is 1200201222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33648519 + ... + 33655118.

It is an arithmetic number, because the mean of its divisors is an integer number (9736592964).

Almost surely, 2^222102002100 is an apocalyptic number.

222102002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102002100 is an abundant number, since it is smaller than the sum of its proper divisors (478932691308).

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

222102002100 is a wasteful number, since it uses less digits than its factorization.

222102002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67303665 (or 67303658 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222102002100 its reverse (1200201222), we get a palindrome (223302203322).

The spelling of 222102002100 in words is "two hundred twenty-two billion, one hundred two million, two thousand, one hundred".