222112121210210 has 128 divisors (see below), whose sum is σ = 520152685682688. Its totient is φ = 66216382848000.

The previous prime is 222112121210191. The next prime is 222112121210219. The reversal of 222112121210210 is 12012121211222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222112121210219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 357981050 + ... + 358600970.

It is an arithmetic number, because the mean of its divisors is an integer number (4063692856896).

Almost surely, 2^{222112121210210} is an apocalyptic number.

222112121210210 is an abundant number, since it is smaller than the sum of its proper divisors (298040564472478).

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

222112121210210 is a wasteful number, since it uses less digits than its factorization.

222112121210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640200.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222112121210210 its reverse (12012121211222), we get a palindrome (234124242421432).

The spelling of 222112121210210 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred ten".