1993321212 has 12 divisors (see below), whose sum is σ = 4651082856. Its totient is φ = 664440400.

The previous prime is 1993321189. The next prime is 1993321229. The reversal of 1993321212 is 2121233991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 83055039 + ... + 83055062.

It is an arithmetic number, because the mean of its divisors is an integer number (387590238).

Almost surely, 2^1993321212 is an apocalyptic number.

1993321212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1993321212 is an abundant number, since it is smaller than the sum of its proper divisors (2657761644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1993321212 is a wasteful number, since it uses less digits than its factorization.

1993321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166110108 (or 166110106 counting only the distinct ones).

The product of its digits is 5832, while the sum is 33.

The square root of 1993321212 is about 44646.6259867417. The cubic root of 1993321212 is about 1258.5170282745.

The spelling of 1993321212 in words is "one billion, nine hundred ninety-three million, three hundred twenty-one thousand, two hundred twelve".