22112210212210 has 8 divisors (see below), whose sum is σ = 39801978381996. Its totient is φ = 8844884084880.

The previous prime is 22112210212121. The next prime is 22112210212219. The reversal of 22112210212210 is 1221201221122.

It can be written as a sum of positive squares in 2 ways, for example, as 20163413756161 + 1948796456049 = 4490369^2 + 1395993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22112210212219) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1105610510601 + ... + 1105610510620.

Almost surely, 2^{22112210212210} is an apocalyptic number.

22112210212210 is a deficient number, since it is larger than the sum of its proper divisors (17689768169786).

22112210212210 is a wasteful number, since it uses less digits than its factorization.

22112210212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211221021228.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22112210212210 its reverse (1221201221122), we get a palindrome (23333411433332).

The spelling of 22112210212210 in words is "twenty-two trillion, one hundred twelve billion, two hundred ten million, two hundred twelve thousand, two hundred ten".