2121010512 has 40 divisors (see below), whose sum is σ = 5481363456. Its totient is φ = 706734336.

The previous prime is 2121010511. The next prime is 2121010513. The reversal of 2121010512 is 2150101212.

It is an interprime number because it is at equal distance from previous prime (2121010511) and next prime (2121010513).

It is a junction number, because it is equal to n+sod(n) for n = 2121010491 and 2121010500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121010511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149553 + ... + 163119.

Almost surely, 2^2121010512 is an apocalyptic number.

It is an amenable number.

2121010512 is an abundant number, since it is smaller than the sum of its proper divisors (3360352944).

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

2121010512 is a wasteful number, since it uses less digits than its factorization.

2121010512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16835 (or 16829 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2121010512 is about 46054.4298846484. The cubic root of 2121010512 is about 1284.8357346787.

Adding to 2121010512 its reverse (2150101212), we get a palindrome (4271111724).

The spelling of 2121010512 in words is "two billion, one hundred twenty-one million, ten thousand, five hundred twelve".