1101112210221 has 8 divisors (see below), whose sum is σ = 1468162197600. Its totient is φ = 734068514832.

The previous prime is 1101112210217. The next prime is 1101112210223. The reversal of 1101112210221 is 1220122111011.

It is a happy number.

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

It is not a de Polignac number, because 1101112210221 - 2² = 1101112210217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101112210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101112210223) 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, 1148275 + ... + 1876368.

It is an arithmetic number, because the mean of its divisors is an integer number (183520274700).

Almost surely, 2^{1101112210221} is an apocalyptic number.

It is an amenable number.

1101112210221 is a deficient number, since it is larger than the sum of its proper divisors (367049987379).

1101112210221 is a wasteful number, since it uses less digits than its factorization.

1101112210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145995.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1101112210221 its reverse (1220122111011), we get a palindrome (2321234321232).

The spelling of 1101112210221 in words is "one trillion, one hundred one billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-one".