212222100022210 has 16 divisors (see below), whose sum is σ = 382016836289016. Its totient is φ = 84885049731328.

The previous prime is 212222100022159. The next prime is 212222100022213. The reversal of 212222100022210 is 12220001222212.

It can be written as a sum of positive squares in 4 ways, for example, as 207495871850089 + 4726228172121 = 14404717^2 + 2173989^2 .

It is not an unprimeable number, because it can be changed into a prime (212222100022213) 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, 473549527 + ... + 473997466.

Almost surely, 2^{212222100022210} is an apocalyptic number.

212222100022210 is a deficient number, since it is larger than the sum of its proper divisors (169794736266806).

212222100022210 is a wasteful number, since it uses less digits than its factorization.

212222100022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947569397.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212222100022210 its reverse (12220001222212), we get a palindrome (224442101244422).

The spelling of 212222100022210 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred million, twenty-two thousand, two hundred ten".