1122288899 has 8 divisors (see below), whose sum is σ = 1136458512. Its totient is φ = 1108134880.

The previous prime is 1122288883. The next prime is 1122288907. The reversal of 1122288899 is 9988822211.

It is a happy number.

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 1122288899 - 2⁴ = 1122288883 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122288829) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221009 + ... + 226029.

It is an arithmetic number, because the mean of its divisors is an integer number (142057314).

Almost surely, 2^1122288899 is an apocalyptic number.

1122288899 is a deficient number, since it is larger than the sum of its proper divisors (14169613).

1122288899 is an equidigital number, since it uses as much as digits as its factorization.

1122288899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797.

The product of its digits is 331776, while the sum is 50.

The square root of 1122288899 is about 33500.5805770587. The cubic root of 1122288899 is about 1039.2057850948.

The spelling of 1122288899 in words is "one billion, one hundred twenty-two million, two hundred eighty-eight thousand, eight hundred ninety-nine".