222101220210 has 64 divisors (see below), whose sum is σ = 542026093824. Its totient is φ = 58229740800.

The previous prime is 222101220191. The next prime is 222101220217. The reversal of 222101220210 is 12022101222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222101220210.

It is not an unprimeable number, because it can be changed into a prime (222101220217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4202872 + ... + 4255388.

It is an arithmetic number, because the mean of its divisors is an integer number (8469157716).

Almost surely, 2^222101220210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222101220210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271013046912).

222101220210 is an abundant number, since it is smaller than the sum of its proper divisors (319924873614).

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

222101220210 is a wasteful number, since it uses less digits than its factorization.

222101220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54899.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222101220210 its reverse (12022101222), we get a palindrome (234123321432).

The spelling of 222101220210 in words is "two hundred twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred ten".