11221221202 has 8 divisors (see below), whose sum is σ = 17242364412. Its totient is φ = 5473766400.

The previous prime is 11221221113. The next prime is 11221221217. The reversal of 11221221202 is 20212212211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8990642761 + 2230578441 = 94819^2 + 47229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68421999 + ... + 68422162.

Almost surely, 2^11221221202 is an apocalyptic number.

11221221202 is a deficient number, since it is larger than the sum of its proper divisors (6021143210).

11221221202 is a wasteful number, since it uses less digits than its factorization.

11221221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136844204.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11221221202 its reverse (20212212211), we get a palindrome (31433433413).

The spelling of 11221221202 in words is "eleven billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred two".