11212221002202 has 64 divisors (see below), whose sum is σ = 27202733107200. Its totient is φ = 3394943817840.

The previous prime is 11212221002201. The next prime is 11212221002237. The reversal of 11212221002202 is 20220012221211.

It is a happy number.

11212221002202 is a `hidden beast` number, since 1 + 121 + 222 + 100 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11212221002201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6748498 + ... + 8244189.

It is an arithmetic number, because the mean of its divisors is an integer number (425042704800).

Almost surely, 2^{11212221002202} is an apocalyptic number.

11212221002202 is an abundant number, since it is smaller than the sum of its proper divisors (15990512104998).

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

11212221002202 is a wasteful number, since it uses less digits than its factorization.

11212221002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993968 (or 14993962 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11212221002202 its reverse (20220012221211), we get a palindrome (31432233223413).

The spelling of 11212221002202 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-one million, two thousand, two hundred two".