1124321221 has 4 divisors (see below), whose sum is σ = 1133174272. Its totient is φ = 1115468172.

The previous prime is 1124321201. The next prime is 1124321243. The reversal of 1124321221 is 1221234211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1221234211 = 353 ⋅3459587.

It is a cyclic number.

It is not a de Polignac number, because 1124321221 - 2⁵ = 1124321189 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 (1124321201) 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, 4426335 + ... + 4426588.

It is an arithmetic number, because the mean of its divisors is an integer number (283293568).

Almost surely, 2^1124321221 is an apocalyptic number.

It is an amenable number.

1124321221 is a deficient number, since it is larger than the sum of its proper divisors (8853051).

1124321221 is an equidigital number, since it uses as much as digits as its factorization.

1124321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853050.

The product of its digits is 192, while the sum is 19.

The square root of 1124321221 is about 33530.8994958382. The cubic root of 1124321221 is about 1039.8326965220.

Adding to 1124321221 its reverse (1221234211), we get a palindrome (2345555432).

The spelling of 1124321221 in words is "one billion, one hundred twenty-four million, three hundred twenty-one thousand, two hundred twenty-one".