1228199882 has 16 divisors (see below), whose sum is σ = 2267446272. Its totient is φ = 485881200.

The previous prime is 1228199879. The next prime is 1228199893. The reversal of 1228199882 is 2889918221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228199882.

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, 3373994 + ... + 3374357.

It is an arithmetic number, because the mean of its divisors is an integer number (141715392).

Almost surely, 2^1228199882 is an apocalyptic number.

1228199882 is a deficient number, since it is larger than the sum of its proper divisors (1039246390).

1228199882 is a wasteful number, since it uses less digits than its factorization.

1228199882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748373.

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

The square root of 1228199882 is about 35045.6827868997. The cubic root of 1228199882 is about 1070.9183259557.

The spelling of 1228199882 in words is "one billion, two hundred twenty-eight million, one hundred ninety-nine thousand, eight hundred eighty-two".