1999022122 has 8 divisors (see below), whose sum is σ = 3003379200. Its totient is φ = 997895724.

The previous prime is 1999022119. The next prime is 1999022153. The reversal of 1999022122 is 2212209991.

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

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, 806122 + ... + 808597.

It is an arithmetic number, because the mean of its divisors is an integer number (375422400).

Almost surely, 2^1999022122 is an apocalyptic number.

1999022122 is a deficient number, since it is larger than the sum of its proper divisors (1004357078).

1999022122 is a wasteful number, since it uses less digits than its factorization.

1999022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615340.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1999022122 is about 44710.4252048669. The cubic root of 1999022122 is about 1259.7156749066.

The spelling of 1999022122 in words is "one billion, nine hundred ninety-nine million, twenty-two thousand, one hundred twenty-two".