22122220100210 has 16 divisors (see below), whose sum is σ = 39820049803800. Its totient is φ = 8848876123776.

The previous prime is 22122220100179. The next prime is 22122220100249. The reversal of 22122220100210 is 1200102222122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20817674644321 + 1304545455889 = 4562639^2 + 1142167^2 .

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, 13303796 + ... + 14873984.

Almost surely, 2^{22122220100210} is an apocalyptic number.

22122220100210 is a deficient number, since it is larger than the sum of its proper divisors (17697829703590).

22122220100210 is a wasteful number, since it uses less digits than its factorization.

22122220100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979085.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122220100210 its reverse (1200102222122), we get a palindrome (23322322322332).

The spelling of 22122220100210 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, one hundred thousand, two hundred ten".