11211212102212 has 48 divisors (see below), whose sum is σ = 21686465187072. Its totient is φ = 5044257320960.

The previous prime is 11211212102203. The next prime is 11211212102219. The reversal of 11211212102212 is 21220121211211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211212102212.

It is not an unprimeable number, because it can be changed into a prime (11211212102219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1978137 + ... + 5131807.

It is an arithmetic number, because the mean of its divisors is an integer number (451801358064).

Almost surely, 2^{11211212102212} is an apocalyptic number.

It is an amenable number.

11211212102212 is a deficient number, since it is larger than the sum of its proper divisors (10475253084860).

11211212102212 is a wasteful number, since it uses less digits than its factorization.

11211212102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155988 (or 3155986 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11211212102212 its reverse (21220121211211), we get a palindrome (32431333313423).

The spelling of 11211212102212 in words is "eleven trillion, two hundred eleven billion, two hundred twelve million, one hundred two thousand, two hundred twelve".