11221211211202 has 8 divisors (see below), whose sum is σ = 17242348934412. Its totient is φ = 5473761566400.

The previous prime is 11221211211191. The next prime is 11221211211209. The reversal of 11221211211202 is 20211211212211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8400890668041 + 2820320543161 = 2898429^2 + 1679381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11221211211202.

It is not an unprimeable number, because it can be changed into a prime (11221211211209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68422019499 + ... + 68422019662.

Almost surely, 2^{11221211211202} is an apocalyptic number.

11221211211202 is a deficient number, since it is larger than the sum of its proper divisors (6021137723210).

11221211211202 is a wasteful number, since it uses less digits than its factorization.

11221211211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136844039204.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11221211211202 its reverse (20211211212211), we get a palindrome (31432422423413).

The spelling of 11221211211202 in words is "eleven trillion, two hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand, two hundred two".