11221021202202 has 36 divisors (see below), whose sum is σ = 28281553440426. Its totient is φ = 3206006057520.

The previous prime is 11221021202161. The next prime is 11221021202203. The reversal of 11221021202202 is 20220212012211.

It is a happy number.

11221021202202 is a `hidden beast` number, since 11 + 221 + 0 + 212 + 0 + 220 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10183636174761 + 1037385027441 = 3191181^2 + 1018521^2 .

It is a super-2 number, since 2×11221021202202² (a number of 27 digits) contains 22 as substring.

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 (11221021202203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6361122249 + ... + 6361124012.

Almost surely, 2^{11221021202202} is an apocalyptic number.

11221021202202 is an abundant number, since it is smaller than the sum of its proper divisors (17060532238224).

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

11221021202202 is a wasteful number, since it uses less digits than its factorization.

11221021202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722246283 (or 12722246273 counting only the distinct ones).

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

Adding to 11221021202202 its reverse (20220212012211), we get a palindrome (31441233214413).

The spelling of 11221021202202 in words is "eleven trillion, two hundred twenty-one billion, twenty-one million, two hundred two thousand, two hundred two".