2001210212 has 24 divisors (see below), whose sum is σ = 3546761400. Its totient is φ = 987883776.

The previous prime is 2001210187. The next prime is 2001210223. The reversal of 2001210212 is 2120121002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1077414976 + 923795236 = 32824^2 + 30394^2 .

It is a super-2 number, since 2×2001210212² = 8009684625226169888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001210193 and 2001210202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257114 + ... + 264782.

It is an arithmetic number, because the mean of its divisors is an integer number (147781725).

Almost surely, 2^2001210212 is an apocalyptic number.

It is an amenable number.

2001210212 is a deficient number, since it is larger than the sum of its proper divisors (1545551188).

2001210212 is a wasteful number, since it uses less digits than its factorization.

2001210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495 (or 8493 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2001210212 is about 44734.8880852518. Note that the first 3 decimals coincide. The cubic root of 2001210212 is about 1260.1751272495.

Adding to 2001210212 its reverse (2120121002), we get a palindrome (4121331214).

The spelling of 2001210212 in words is "two billion, one million, two hundred ten thousand, two hundred twelve".