11211211202212 has 48 divisors (see below), whose sum is σ = 22471979886720. Its totient is φ = 4794186765312.

The previous prime is 11211211202189. The next prime is 11211211202281. The reversal of 11211211202212 is 21220211211211.

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 11211211202212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343790964 + ... + 343823572.

It is an arithmetic number, because the mean of its divisors is an integer number (468166247640).

Almost surely, 2^{11211211202212} is an apocalyptic number.

It is an amenable number.

11211211202212 is an abundant number, since it is smaller than the sum of its proper divisors (11260768684508).

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

11211211202212 is a wasteful number, since it uses less digits than its factorization.

11211211202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59380 (or 59378 counting only the distinct ones).

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

Adding to 11211211202212 its reverse (21220211211211), we get a palindrome (32431422413423).

The spelling of 11211211202212 in words is "eleven trillion, two hundred eleven billion, two hundred eleven million, two hundred two thousand, two hundred twelve".