2113201212 has 12 divisors (see below), whose sum is σ = 4930802856. Its totient is φ = 704400400.

The previous prime is 2113201193. The next prime is 2113201219. The reversal of 2113201212 is 2121023112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2113201191 and 2113201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113201219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88050039 + ... + 88050062.

It is an arithmetic number, because the mean of its divisors is an integer number (410900238).

Almost surely, 2^2113201212 is an apocalyptic number.

It is an amenable number.

2113201212 is an abundant number, since it is smaller than the sum of its proper divisors (2817601644).

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

2113201212 is a wasteful number, since it uses less digits than its factorization.

2113201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176100108 (or 176100106 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2113201212 is about 45969.5683251431. The cubic root of 2113201212 is about 1283.2569263481.

Adding to 2113201212 its reverse (2121023112), we get a palindrome (4234224324).

The spelling of 2113201212 in words is "two billion, one hundred thirteen million, two hundred one thousand, two hundred twelve".