11212220202222 has 48 divisors (see below), whose sum is σ = 24442895207808. Its totient is φ = 3427066749600.

The previous prime is 11212220202199. The next prime is 11212220202299. The reversal of 11212220202222 is 22220202221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36460848 + ... + 36767075.

It is an arithmetic number, because the mean of its divisors is an integer number (509226983496).

Almost surely, 2^{11212220202222} is an apocalyptic number.

11212220202222 is an abundant number, since it is smaller than the sum of its proper divisors (13230675005586).

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

11212220202222 is a wasteful number, since it uses less digits than its factorization.

11212220202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73228105 (or 73228092 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11212220202222 its reverse (22220202221211), we get a palindrome (33432422423433).

The spelling of 11212220202222 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, two hundred two thousand, two hundred twenty-two".