210030133212 has 18 divisors (see below), whose sum is σ = 530909503488. Its totient is φ = 70010044392.

The previous prime is 210030133211. The next prime is 210030133217. The reversal of 210030133212 is 212331030012.

210030133212 is a `hidden beast` number, since 21 + 0 + 0 + 301 + 332 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×210030133212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210030133211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2917085148 + ... + 2917085219.

It is an arithmetic number, because the mean of its divisors is an integer number (29494972416).

Almost surely, 2^210030133212 is an apocalyptic number.

It is an amenable number.

210030133212 is an abundant number, since it is smaller than the sum of its proper divisors (320879370276).

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

210030133212 is a wasteful number, since it uses less digits than its factorization.

210030133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834170377 (or 5834170372 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210030133212 its reverse (212331030012), we get a palindrome (422361163224).

The spelling of 210030133212 in words is "two hundred ten billion, thirty million, one hundred thirty-three thousand, two hundred twelve".