1121022203 has 8 divisors (see below), whose sum is σ = 1285290240. Its totient is φ = 957784680.

The previous prime is 1121022197. The next prime is 1121022209. The reversal of 1121022203 is 3022201211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121022197) and next prime (1121022209).

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

It is a cyclic number.

It is not a de Polignac number, because 1121022203 - 2⁴ = 1121022187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121022209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255293 + ... + 259646.

It is an arithmetic number, because the mean of its divisors is an integer number (160661280).

Almost surely, 2^1121022203 is an apocalyptic number.

1121022203 is a deficient number, since it is larger than the sum of its proper divisors (164268037).

1121022203 is an equidigital number, since it uses as much as digits as its factorization.

1121022203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515257.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1121022203 is about 33481.6696566942. The cubic root of 1121022203 is about 1038.8146637688.

Adding to 1121022203 its reverse (3022201211), we get a palindrome (4143223414).

The spelling of 1121022203 in words is "one billion, one hundred twenty-one million, twenty-two thousand, two hundred three".