1100221201001 has 8 divisors (see below), whose sum is σ = 1194183158784. Its totient is φ = 1007592037200.

The previous prime is 1100221200989. The next prime is 1100221201003. The reversal of 1100221201001 is 1001021220011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100221201001 - 2¹⁰ = 1100221199977 is a prime.

It is a super-3 number, since 3×1100221201001³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100221201003) 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, 333196775 + ... + 333200076.

It is an arithmetic number, because the mean of its divisors is an integer number (149272894848).

Almost surely, 2^{1100221201001} is an apocalyptic number.

It is an amenable number.

1100221201001 is a deficient number, since it is larger than the sum of its proper divisors (93961957783).

1100221201001 is a wasteful number, since it uses less digits than its factorization.

1100221201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666396991.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100221201001 its reverse (1001021220011), we get a palindrome (2101242421012).

The spelling of 1100221201001 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred one thousand, one".