1999985282228 has 48 divisors (see below), whose sum is σ = 3778884869760. Its totient is φ = 923335459200.

The previous prime is 1999985282227. The next prime is 1999985282237. The reversal of 1999985282228 is 8222825899991.

It is a super-2 number, since 2×1999985282228² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999985282227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12892043 + ... + 13046253.

It is an arithmetic number, because the mean of its divisors is an integer number (78726768120).

Almost surely, 2^{1999985282228} is an apocalyptic number.

It is an amenable number.

1999985282228 is a deficient number, since it is larger than the sum of its proper divisors (1778899587532).

1999985282228 is a wasteful number, since it uses less digits than its factorization.

1999985282228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159128 (or 159126 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 74.

The spelling of 1999985282228 in words is "one trillion, nine hundred ninety-nine billion, nine hundred eighty-five million, two hundred eighty-two thousand, two hundred twenty-eight".