210122222 has 4 divisors (see below), whose sum is σ = 315183336. Its totient is φ = 105061110.

The previous prime is 210122207. The next prime is 210122279. The reversal of 210122222 is 222221012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 210122197 and 210122206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52530554 + ... + 52530557.

It is an arithmetic number, because the mean of its divisors is an integer number (78795834).

Almost surely, 2^210122222 is an apocalyptic number.

210122222 is a deficient number, since it is larger than the sum of its proper divisors (105061114).

210122222 is a wasteful number, since it uses less digits than its factorization.

210122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105061113.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 210122222 is about 14495.5931924154. The cubic root of 210122222 is about 594.5074868851.

Adding to 210122222 its reverse (222221012), we get a palindrome (432343234).

It can be divided in two parts, 21012 and 2222, that multiplied together give a palindrome (46688664).

The spelling of 210122222 in words is "two hundred ten million, one hundred twenty-two thousand, two hundred twenty-two".