211122201012212 has 18 divisors (see below), whose sum is σ = 429784480632402. Its totient is φ = 90480943290864.

The previous prime is 211122201012167. The next prime is 211122201012253. The reversal of 211122201012212 is 212210102221112.

It can be written as a sum of positive squares in only one way, i.e., 176582531326096 + 34539669686116 = 13288436^2 + 5877046^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 538577043203 + ... + 538577043594.

It is an arithmetic number, because the mean of its divisors is an integer number (23876915590689).

Almost surely, 2^{211122201012212} is an apocalyptic number.

It is an amenable number.

211122201012212 is an abundant number, since it is smaller than the sum of its proper divisors (218662279620190).

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

211122201012212 is a wasteful number, since it uses less digits than its factorization.

211122201012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077154086815 (or 1077154086806 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211122201012212 its reverse (212210102221112), we get a palindrome (423332303233324).

The spelling of 211122201012212 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred one million, twelve thousand, two hundred twelve".