2001213192 has 96 divisors (see below), whose sum is σ = 5554463040. Its totient is φ = 600336000.

The previous prime is 2001213173. The next prime is 2001213241. The reversal of 2001213192 is 2913121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289893 + ... + 296715.

It is an arithmetic number, because the mean of its divisors is an integer number (57858990).

Almost surely, 2^2001213192 is an apocalyptic number.

2001213192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001213192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2777231520).

2001213192 is an abundant number, since it is smaller than the sum of its proper divisors (3553249848).

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

2001213192 is a wasteful number, since it uses less digits than its factorization.

2001213192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955 (or 6940 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2001213192 is about 44734.9213925765. The cubic root of 2001213192 is about 1260.1757527576.

Adding to 2001213192 its reverse (2913121002), we get a palindrome (4914334194).

The spelling of 2001213192 in words is "two billion, one million, two hundred thirteen thousand, one hundred ninety-two".