1121220430 has 16 divisors (see below), whose sum is σ = 2201669424. Its totient is φ = 407716480.

The previous prime is 1121220413. The next prime is 1121220449. The reversal of 1121220430 is 340221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5096347 + ... + 5096566.

It is an arithmetic number, because the mean of its divisors is an integer number (137604339).

Almost surely, 2^1121220430 is an apocalyptic number.

1121220430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121220430 is a deficient number, since it is larger than the sum of its proper divisors (1080448994).

1121220430 is a wasteful number, since it uses less digits than its factorization.

1121220430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192931.

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

The square root of 1121220430 is about 33484.6297575470. The cubic root of 1121220430 is about 1038.8758903224.

Adding to 1121220430 its reverse (340221211), we get a palindrome (1461441641).

The spelling of 1121220430 in words is "one billion, one hundred twenty-one million, two hundred twenty thousand, four hundred thirty".