11022021201221 has 8 divisors (see below), whose sum is σ = 11278526508480. Its totient is φ = 10765524040992.

The previous prime is 11022021201193. The next prime is 11022021201229. The reversal of 11022021201221 is 12210212022011.

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-11022021201221 is a prime.

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 11022021201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022021201229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744176 + ... + 4753718.

It is an arithmetic number, because the mean of its divisors is an integer number (1409815813560).

Almost surely, 2^{11022021201221} is an apocalyptic number.

It is an amenable number.

11022021201221 is a deficient number, since it is larger than the sum of its proper divisors (256505307259).

11022021201221 is an equidigital number, since it uses as much as digits as its factorization.

11022021201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073515.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11022021201221 its reverse (12210212022011), we get a palindrome (23232233223232).

The spelling of 11022021201221 in words is "eleven trillion, twenty-two billion, twenty-one million, two hundred one thousand, two hundred twenty-one".