1100221220201 has 4 divisors (see below), whose sum is σ = 1100233260432. Its totient is φ = 1100209179972.

The previous prime is 1100221220177. The next prime is 1100221220237. The reversal of 1100221220201 is 1020221220011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100221220201 - 2¹⁴ = 1100221203817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100221220291) 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, 5881991 + ... + 6066156.

It is an arithmetic number, because the mean of its divisors is an integer number (275058315108).

Almost surely, 2^{1100221220201} is an apocalyptic number.

It is an amenable number.

1100221220201 is a deficient number, since it is larger than the sum of its proper divisors (12040231).

1100221220201 is an equidigital number, since it uses as much as digits as its factorization.

1100221220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040230.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1100221220201 its reverse (1020221220011), we get a palindrome (2120442440212).

The spelling of 1100221220201 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".