222021120210 has 16 divisors (see below), whose sum is σ = 532850688576. Its totient is φ = 59205632048.

The previous prime is 222021120169. The next prime is 222021120263. The reversal of 222021120210 is 12021120222.

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 222021120210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700351974 + ... + 3700352033.

It is an arithmetic number, because the mean of its divisors is an integer number (33303168036).

Almost surely, 2^222021120210 is an apocalyptic number.

222021120210 is an abundant number, since it is smaller than the sum of its proper divisors (310829568366).

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

222021120210 is a wasteful number, since it uses less digits than its factorization.

222021120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400704017.

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

Adding to 222021120210 its reverse (12021120222), we get a palindrome (234042240432).

The spelling of 222021120210 in words is "two hundred twenty-two billion, twenty-one million, one hundred twenty thousand, two hundred ten".