2001031212 has 24 divisors (see below), whose sum is σ = 4702667200. Its totient is φ = 662211216.

The previous prime is 2001031133. The next prime is 2001031213. The reversal of 2001031212 is 2121301002.

It is a super-2 number, since 2×2001031212² = 8008251822796377888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2001031213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598162 + ... + 601497.

Almost surely, 2^2001031212 is an apocalyptic number.

It is an amenable number.

2001031212 is an abundant number, since it is smaller than the sum of its proper divisors (2701635988).

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

2001031212 is a wasteful number, since it uses less digits than its factorization.

2001031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199805 (or 1199803 counting only the distinct ones).

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

The square root of 2001031212 is about 44732.8873648907. The cubic root of 2001031212 is about 1260.1375536399.

Adding to 2001031212 its reverse (2121301002), we get a palindrome (4122332214).

The spelling of 2001031212 in words is "two billion, one million, thirty-one thousand, two hundred twelve".