2120102012 has 18 divisors (see below), whose sum is σ = 4315922352. Its totient is φ = 908615064.

The previous prime is 2120102003. The next prime is 2120102029. The reversal of 2120102012 is 2102010212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120101984 and 2120102002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5408228 + ... + 5408619.

It is an arithmetic number, because the mean of its divisors is an integer number (239773464).

Almost surely, 2^2120102012 is an apocalyptic number.

It is an amenable number.

2120102012 is an abundant number, since it is smaller than the sum of its proper divisors (2195820340).

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

2120102012 is a wasteful number, since it uses less digits than its factorization.

2120102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816865 (or 10816856 counting only the distinct ones).

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

The square root of 2120102012 is about 46044.5654990901. The cubic root of 2120102012 is about 1284.6522623890.

Adding to 2120102012 its reverse (2102010212), we get a palindrome (4222112224).

The spelling of 2120102012 in words is "two billion, one hundred twenty million, one hundred two thousand, twelve".