1102011011221 has 16 divisors (see below), whose sum is σ = 1155580473600. Its totient is φ = 1048922267008.

The previous prime is 1102011011201. The next prime is 1102011011273. The reversal of 1102011011221 is 1221101102011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1102011011221 - 2⁷ = 1102011011093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102011011201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5084745 + ... + 5297041.

It is an arithmetic number, because the mean of its divisors is an integer number (72223779600).

Almost surely, 2^{1102011011221} is an apocalyptic number.

It is an amenable number.

1102011011221 is a deficient number, since it is larger than the sum of its proper divisors (53569462379).

1102011011221 is a wasteful number, since it uses less digits than its factorization.

1102011011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213428.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1102011011221 its reverse (1221101102011), we get a palindrome (2323112113232).

The spelling of 1102011011221 in words is "one trillion, one hundred two billion, eleven million, eleven thousand, two hundred twenty-one".