210222112121210 has 32 divisors (see below), whose sum is σ = 455217806701440. Its totient is φ = 68282671004352.

The previous prime is 210222112121173. The next prime is 210222112121221. The reversal of 210222112121210 is 12121211222012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79030867889 + ... + 79030870548.

It is an arithmetic number, because the mean of its divisors is an integer number (14225556459420).

Almost surely, 2^{210222112121210} is an apocalyptic number.

210222112121210 is an abundant number, since it is smaller than the sum of its proper divisors (244995694580230).

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

210222112121210 is a wasteful number, since it uses less digits than its factorization.

210222112121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158061738470.

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

Adding to 210222112121210 its reverse (12121211222012), we get a palindrome (222343323343222).

The spelling of 210222112121210 in words is "two hundred ten trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred ten".