2121424012 has 12 divisors (see below), whose sum is σ = 3731930496. Its totient is φ = 1055158160.

The previous prime is 2121423991. The next prime is 2121424031. The reversal of 2121424012 is 2104241212.

It is a super-2 number, since 2×2121424012² = 9000879677380352288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387603 + ... + 1389130.

It is an arithmetic number, because the mean of its divisors is an integer number (310994208).

Almost surely, 2^2121424012 is an apocalyptic number.

It is an amenable number.

2121424012 is a deficient number, since it is larger than the sum of its proper divisors (1610506484).

2121424012 is a wasteful number, since it uses less digits than its factorization.

2121424012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776928 (or 2776926 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2121424012 is about 46058.9189191409. The cubic root of 2121424012 is about 1284.9192239797.

Adding to 2121424012 its reverse (2104241212), we get a palindrome (4225665224).

The spelling of 2121424012 in words is "two billion, one hundred twenty-one million, four hundred twenty-four thousand, twelve".