1122221203 has 4 divisors (see below), whose sum is σ = 1134830520. Its totient is φ = 1109611888.

The previous prime is 1122221179. The next prime is 1122221237. The reversal of 1122221203 is 3021222211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1122221203 - 2¹⁷ = 1122090131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122221273) 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, 6304525 + ... + 6304702.

It is an arithmetic number, because the mean of its divisors is an integer number (283707630).

Almost surely, 2^1122221203 is an apocalyptic number.

1122221203 is a deficient number, since it is larger than the sum of its proper divisors (12609317).

1122221203 is an equidigital number, since it uses as much as digits as its factorization.

1122221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609316.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1122221203 is about 33499.5701912726. The cubic root of 1122221203 is about 1039.1848898543.

Adding to 1122221203 its reverse (3021222211), we get a palindrome (4143443414).

The spelling of 1122221203 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred three".