210012012 has 72 divisors (see below), whose sum is σ = 608034336. Its totient is φ = 59871744.

The previous prime is 210011981. The next prime is 210012013. The reversal of 210012012 is 210210012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210011985 and 210012003.

It is not an unprimeable number, because it can be changed into a prime (210012013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214468 + ... + 215444.

Almost surely, 2^210012012 is an apocalyptic number.

It is an amenable number.

210012012 is an abundant number, since it is smaller than the sum of its proper divisors (398022324).

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

210012012 is a wasteful number, since it uses less digits than its factorization.

210012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847 (or 1842 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 210012012 is about 14491.7911936379. The cubic root of 210012012 is about 594.4035281381.

Adding to 210012012 its reverse (210210012), we get a palindrome (420222024).

The spelling of 210012012 in words is "two hundred ten million, twelve thousand, twelve".