1101221101011 has 8 divisors (see below), whose sum is σ = 1468378826640. Its totient is φ = 734105388032.

The previous prime is 1101221101009. The next prime is 1101221101051. The reversal of 1101221101011 is 1101011221011.

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 1101221101011 - 2¹ = 1101221101009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101221101051) 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, 10441950 + ... + 10546883.

It is an arithmetic number, because the mean of its divisors is an integer number (183547353330).

Almost surely, 2^{1101221101011} is an apocalyptic number.

1101221101011 is a deficient number, since it is larger than the sum of its proper divisors (367157725629).

1101221101011 is a wasteful number, since it uses less digits than its factorization.

1101221101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21006325.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1101221101011 its reverse (1101011221011), we get a palindrome (2202232322022).

The spelling of 1101221101011 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred one thousand, eleven".