11121222201 has 8 divisors (see below), whose sum is σ = 15229061184. Its totient is φ = 7213765680.

The previous prime is 11121222199. The next prime is 11121222239. The reversal of 11121222201 is 10222212111.

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

It is not a de Polignac number, because 11121222201 - 2¹ = 11121222199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121222251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50095485 + ... + 50095706.

It is an arithmetic number, because the mean of its divisors is an integer number (1903632648).

Almost surely, 2^11121222201 is an apocalyptic number.

It is an amenable number.

11121222201 is a deficient number, since it is larger than the sum of its proper divisors (4107838983).

11121222201 is a wasteful number, since it uses less digits than its factorization.

11121222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100191231.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11121222201 its reverse (10222212111), we get a palindrome (21343434312).

The spelling of 11121222201 in words is "eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred one".