1123221201 has 16 divisors (see below), whose sum is σ = 1509491328. Its totient is φ = 742896000.

The previous prime is 1123221179. The next prime is 1123221217. The reversal of 1123221201 is 1021223211.

It is not a de Polignac number, because 1123221201 - 2⁶ = 1123221137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123221221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597475 + ... + 599351.

It is an arithmetic number, because the mean of its divisors is an integer number (94343208).

Almost surely, 2^1123221201 is an apocalyptic number.

It is an amenable number.

1123221201 is a deficient number, since it is larger than the sum of its proper divisors (386270127).

1123221201 is a wasteful number, since it uses less digits than its factorization.

1123221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

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

The square root of 1123221201 is about 33514.4924025413. The cubic root of 1123221201 is about 1039.4934666583.

Adding to 1123221201 its reverse (1021223211), we get a palindrome (2144444412).

The spelling of 1123221201 in words is "one billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred one".