11002221221202 has 12 divisors (see below), whose sum is σ = 23838145979310. Its totient is φ = 3667407073728.

The previous prime is 11002221221141. The next prime is 11002221221207. The reversal of 11002221221202 is 20212212220011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6031145193921 + 4971076027281 = 2455839^2 + 2229591^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 611234512289 = 11002221221202 / (1 + 1 + 0 + 0 + 2 + 2 + 2 + 1 + 2 + 2 + 1 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (11002221221207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305617256127 + ... + 305617256162.

Almost surely, 2^{11002221221202} is an apocalyptic number.

11002221221202 is an abundant number, since it is smaller than the sum of its proper divisors (12835924758108).

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

11002221221202 is a wasteful number, since it uses less digits than its factorization.

11002221221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611234512297 (or 611234512294 counting only the distinct ones).

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

Adding to 11002221221202 its reverse (20212212220011), we get a palindrome (31214433441213).

The spelling of 11002221221202 in words is "eleven trillion, two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred two".