1101102221 has 4 divisors (see below), whose sum is σ = 1102150944. Its totient is φ = 1100053500.

The previous prime is 1101102217. The next prime is 1101102227. The reversal of 1101102221 is 1222011011.

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 1101102221 - 2² = 1101102217 is a prime.

It is a super-2 number, since 2×1101102221² = 2424852202182265682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101102227) 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, 522785 + ... + 524886.

It is an arithmetic number, because the mean of its divisors is an integer number (275537736).

Almost surely, 2^1101102221 is an apocalyptic number.

It is an amenable number.

1101102221 is a deficient number, since it is larger than the sum of its proper divisors (1048723).

1101102221 is a wasteful number, since it uses less digits than its factorization.

1101102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048722.

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

The square root of 1101102221 is about 33182.8603498855. The cubic root of 1101102221 is about 1032.6247884866.

Adding to 1101102221 its reverse (1222011011), we get a palindrome (2323113232).

The spelling of 1101102221 in words is "one billion, one hundred one million, one hundred two thousand, two hundred twenty-one".