1121421115 has 8 divisors (see below), whose sum is σ = 1347679728. Its totient is φ = 895820640.

The previous prime is 1121421107. The next prime is 1121421127. The reversal of 1121421115 is 5111241211.

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

It is not a de Polignac number, because 1121421115 - 2³ = 1121421107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121421092 and 1121421101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160776 + ... + 167605.

It is an arithmetic number, because the mean of its divisors is an integer number (168459966).

Almost surely, 2^1121421115 is an apocalyptic number.

1121421115 is a deficient number, since it is larger than the sum of its proper divisors (226258613).

1121421115 is an equidigital number, since it uses as much as digits as its factorization.

1121421115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329069.

The product of its digits is 80, while the sum is 19.

The square root of 1121421115 is about 33487.6262968876. The cubic root of 1121421115 is about 1038.9378687300.

Adding to 1121421115 its reverse (5111241211), we get a palindrome (6232662326).

The spelling of 1121421115 in words is "one billion, one hundred twenty-one million, four hundred twenty-one thousand, one hundred fifteen".