2001012213 has 8 divisors (see below), whose sum is σ = 2784017088. Its totient is φ = 1276007744.

The previous prime is 2001012179. The next prime is 2001012229. The reversal of 2001012213 is 3122101002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001012213 - 2¹² = 2001008117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001012313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14500020 + ... + 14500157.

It is an arithmetic number, because the mean of its divisors is an integer number (348002136).

Almost surely, 2^2001012213 is an apocalyptic number.

2001012213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2001012213 is a deficient number, since it is larger than the sum of its proper divisors (783004875).

2001012213 is a wasteful number, since it uses less digits than its factorization.

2001012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29000203.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2001012213 is about 44732.6750038493. The cubic root of 2001012213 is about 1260.1335654580.

Adding to 2001012213 its reverse (3122101002), we get a palindrome (5123113215).

It can be divided in two parts, 20010 and 12213, that added together give a palindrome (32223).

The spelling of 2001012213 in words is "two billion, one million, twelve thousand, two hundred thirteen".