1130212221 has 8 divisors (see below), whose sum is σ = 1508980800. Its totient is φ = 752459232.

The previous prime is 1130212219. The next prime is 1130212231. The reversal of 1130212221 is 1222120311.

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

It is not a de Polignac number, because 1130212221 - 2¹ = 1130212219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1130212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130212231) 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 7 ways as a sum of consecutive naturals, for example, 251296 + ... + 255753.

It is an arithmetic number, because the mean of its divisors is an integer number (188622600).

Almost surely, 2^1130212221 is an apocalyptic number.

It is an amenable number.

1130212221 is a deficient number, since it is larger than the sum of its proper divisors (378768579).

1130212221 is an equidigital number, since it uses as much as digits as its factorization.

1130212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507795.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1130212221 is about 33618.6290767485. The cubic root of 1130212221 is about 1041.6456383111.

Adding to 1130212221 its reverse (1222120311), we get a palindrome (2352332532).

The spelling of 1130212221 in words is "one billion, one hundred thirty million, two hundred twelve thousand, two hundred twenty-one".