11011221122202 has 128 divisors (see below), whose sum is σ = 28442538547200. Its totient is φ = 3092354091648.

The previous prime is 11011221122201. The next prime is 11011221122207. The reversal of 11011221122202 is 20222112211011.

11011221122202 is a `hidden beast` number, since 110 + 11 + 221 + 122 + 202 = 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 (11011221122201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 211106958 + ... + 211159110.

It is an arithmetic number, because the mean of its divisors is an integer number (222207332400).

Almost surely, 2^{11011221122202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11011221122202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14221269273600).

11011221122202 is an abundant number, since it is smaller than the sum of its proper divisors (17431317424998).

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

11011221122202 is a wasteful number, since it uses less digits than its factorization.

11011221122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61697 (or 61691 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11011221122202 its reverse (20222112211011), we get a palindrome (31233333333213).

The spelling of 11011221122202 in words is "eleven trillion, eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred two".