11211001122212 has 6 divisors (see below), whose sum is σ = 19619251963878. Its totient is φ = 5605500561104.

The previous prime is 11211001122169. The next prime is 11211001122241. The reversal of 11211001122212 is 21222110011211.

It can be written as a sum of positive squares in only one way, i.e., 11105262991936 + 105738130276 = 3332456^2 + 325174^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401375140273 + ... + 1401375140280.

It is an arithmetic number, because the mean of its divisors is an integer number (3269875327313).

Almost surely, 2^{11211001122212} is an apocalyptic number.

It is an amenable number.

11211001122212 is a deficient number, since it is larger than the sum of its proper divisors (8408250841666).

11211001122212 is a wasteful number, since it uses less digits than its factorization.

11211001122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802750280557 (or 2802750280555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11211001122212 its reverse (21222110011211), we get a palindrome (32433111133423).

The spelling of 11211001122212 in words is "eleven trillion, two hundred eleven billion, one million, one hundred twenty-two thousand, two hundred twelve".