2124012413421 has 16 divisors (see below), whose sum is σ = 3176093332800. Its totient is φ = 1402774551504.

The previous prime is 2124012413417. The next prime is 2124012413447. The reversal of 2124012413421 is 1243142104212.

2124012413421 is a `hidden beast` number, since 2 + 1 + 240 + 1 + 2 + 413 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 2124012413421 - 2² = 2124012413417 is a prime.

It is a super-3 number, since 3×2124012413421³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124012413401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367600506 + ... + 367606283.

It is an arithmetic number, because the mean of its divisors is an integer number (198505833300).

Almost surely, 2^{2124012413421} is an apocalyptic number.

It is an amenable number.

2124012413421 is a deficient number, since it is larger than the sum of its proper divisors (1052080919379).

2124012413421 is a wasteful number, since it uses less digits than its factorization.

2124012413421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735206905 (or 735206899 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 2124012413421 its reverse (1243142104212), we get a palindrome (3367154517633).

The spelling of 2124012413421 in words is "two trillion, one hundred twenty-four billion, twelve million, four hundred thirteen thousand, four hundred twenty-one".