1121099998 has 8 divisors (see below), whose sum is σ = 1697977008. Its totient is φ = 555107664.

The previous prime is 1121099983. The next prime is 1121100083. The reversal of 1121099998 is 8999901211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720911 + ... + 2721322.

It is an arithmetic number, because the mean of its divisors is an integer number (212247126).

Almost surely, 2^1121099998 is an apocalyptic number.

1121099998 is a deficient number, since it is larger than the sum of its proper divisors (576877010).

1121099998 is a wasteful number, since it uses less digits than its factorization.

1121099998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442338.

The product of its (nonzero) digits is 104976, while the sum is 49.

The square root of 1121099998 is about 33482.8313916252. The cubic root of 1121099998 is about 1038.8386932415.

The spelling of 1121099998 in words is "one billion, one hundred twenty-one million, ninety-nine thousand, nine hundred ninety-eight".