1102444221 has 4 divisors (see below), whose sum is σ = 1469925632. Its totient is φ = 734962812.

The previous prime is 1102444199. The next prime is 1102444229. The reversal of 1102444221 is 1224442011.

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 not a de Polignac number, because 1102444221 - 2²¹ = 1100347069 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 (1102444229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183740701 + ... + 183740706.

It is an arithmetic number, because the mean of its divisors is an integer number (367481408).

Almost surely, 2^1102444221 is an apocalyptic number.

It is an amenable number.

1102444221 is a deficient number, since it is larger than the sum of its proper divisors (367481411).

1102444221 is an equidigital number, since it uses as much as digits as its factorization.

1102444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367481410.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1102444221 is about 33203.0754750219. The cubic root of 1102444221 is about 1033.0441318904.

Adding to 1102444221 its reverse (1224442011), we get a palindrome (2326886232).

The spelling of 1102444221 in words is "one billion, one hundred two million, four hundred forty-four thousand, two hundred twenty-one".