210122212122222 has 16 divisors (see below), whose sum is σ = 431602381656912. Its totient is φ = 68147744472000.

The previous prime is 210122212122217. The next prime is 210122212122227. The reversal of 210122212122222 is 222221212221012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210122212122217) and next prime (210122212122227).

It is a junction number, because it is equal to n+sod(n) for n = 210122212122192 and 210122212122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122212122227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473248225279 + ... + 473248225722.

It is an arithmetic number, because the mean of its divisors is an integer number (26975148853557).

Almost surely, 2^{210122212122222} is an apocalyptic number.

210122212122222 is an abundant number, since it is smaller than the sum of its proper divisors (221480169534690).

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

210122212122222 is a wasteful number, since it uses less digits than its factorization.

210122212122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946496451043.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 210122212122222 its reverse (222221212221012), we get a palindrome (432343424343234).

The spelling of 210122212122222 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".