11121221210201 has 8 divisors (see below), whose sum is σ = 11792651423904. Its totient is φ = 10451706633280.

The previous prime is 11121221210189. The next prime is 11121221210237. The reversal of 11121221210201 is 10201212212111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121221210201 is a prime.

It is a super-2 number, since 2×11121221210201² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121221210201.

It is not an unprimeable number, because it can be changed into a prime (11121221216201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 478897235 + ... + 478920456.

It is an arithmetic number, because the mean of its divisors is an integer number (1474081427988).

Almost surely, 2^{11121221210201} is an apocalyptic number.

It is an amenable number.

11121221210201 is a deficient number, since it is larger than the sum of its proper divisors (671430213703).

11121221210201 is an equidigital number, since it uses as much as digits as its factorization.

11121221210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957818391.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121221210201 its reverse (10201212212111), we get a palindrome (21322433422312).

The spelling of 11121221210201 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred ten thousand, two hundred one".