1102032221 has 4 divisors (see below), whose sum is σ = 1102211100. Its totient is φ = 1101853344.

The previous prime is 1102032187. The next prime is 1102032227. The reversal of 1102032221 is 1222302011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 339664900 + 762367321 = 18430^2 + 27611^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102032221 - 2¹⁸ = 1101770077 is a prime.

It is a super-2 number, since 2×1102032221² = 2428950032244385682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102032196 and 1102032205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102032227) 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, 79856 + ... + 92633.

It is an arithmetic number, because the mean of its divisors is an integer number (275552775).

Almost surely, 2^1102032221 is an apocalyptic number.

It is an amenable number.

1102032221 is a deficient number, since it is larger than the sum of its proper divisors (178879).

1102032221 is an equidigital number, since it uses as much as digits as its factorization.

1102032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178878.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1102032221 is about 33196.8706507104. The cubic root of 1102032221 is about 1032.9154278088.

Adding to 1102032221 its reverse (1222302011), we get a palindrome (2324334232).

The spelling of 1102032221 in words is "one billion, one hundred two million, thirty-two thousand, two hundred twenty-one".