222105210 has 32 divisors (see below), whose sum is σ = 534969792. Its totient is φ = 59015040.

The previous prime is 222105197. The next prime is 222105239. The reversal of 222105210 is 12501222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222105210.

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, 4744 + ... + 21603.

It is an arithmetic number, because the mean of its divisors is an integer number (16717806).

Almost surely, 2^222105210 is an apocalyptic number.

222105210 is an abundant number, since it is smaller than the sum of its proper divisors (312864582).

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

222105210 is a wasteful number, since it uses less digits than its factorization.

222105210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26638.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 222105210 is about 14903.1946239724. The cubic root of 222105210 is about 605.6005329528.

Adding to 222105210 its reverse (12501222), we get a palindrome (234606432).

The spelling of 222105210 in words is "two hundred twenty-two million, one hundred five thousand, two hundred ten".