1188099099 has 12 divisors (see below), whose sum is σ = 1872156312. Its totient is φ = 720060000.

The previous prime is 1188099067. The next prime is 1188099113. The reversal of 1188099099 is 9909908811.

It is not a de Polignac number, because 1188099099 - 2⁵ = 1188099067 is a prime.

It is a super-2 number, since 2×1188099099² = 2823158938089223602, which contains 22 as substring.

1188099099 is a modest number, since divided by 99099 gives 1188 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1188099299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6000402 + ... + 6000599.

It is an arithmetic number, because the mean of its divisors is an integer number (156013026).

Almost surely, 2^1188099099 is an apocalyptic number.

1188099099 is a deficient number, since it is larger than the sum of its proper divisors (684057213).

1188099099 is a wasteful number, since it uses less digits than its factorization.

1188099099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001018 (or 12001015 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 54.

The square root of 1188099099 is about 34468.8134260523. The cubic root of 1188099099 is about 1059.1339487680.

The spelling of 1188099099 in words is "one billion, one hundred eighty-eight million, ninety-nine thousand, ninety-nine".