2120101212 has 24 divisors (see below), whose sum is σ = 5237897616. Its totient is φ = 665129728.

The previous prime is 2120101211. The next prime is 2120101223. The reversal of 2120101212 is 2121010212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120101211) 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 7 ways as a sum of consecutive naturals, for example, 5196123 + ... + 5196530.

It is an arithmetic number, because the mean of its divisors is an integer number (218245734).

Almost surely, 2^2120101212 is an apocalyptic number.

It is an amenable number.

2120101212 is an abundant number, since it is smaller than the sum of its proper divisors (3117796404).

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

2120101212 is a wasteful number, since it uses less digits than its factorization.

2120101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10392677 (or 10392675 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2120101212 is about 46044.5568118535. The cubic root of 2120101212 is about 1284.6521008053.

Adding to 2120101212 its reverse (2121010212), we get a palindrome (4241111424).

The spelling of 2120101212 in words is "two billion, one hundred twenty million, one hundred one thousand, two hundred twelve".