4032121124421 has 32 divisors (see below), whose sum is σ = 6512433728640. Its totient is φ = 2481305289840.

The previous prime is 4032121124419. The next prime is 4032121124519. The reversal of 4032121124421 is 1244211212304.

4032121124421 is a `hidden beast` number, since 4 + 0 + 3 + 2 + 1 + 211 + 2 + 442 + 1 = 666.

It is not a de Polignac number, because 4032121124421 - 2¹ = 4032121124419 is a prime.

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 (4032121124221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70882215 + ... + 70939076.

It is an arithmetic number, because the mean of its divisors is an integer number (203513554020).

Almost surely, 2^{4032121124421} is an apocalyptic number.

It is an amenable number.

4032121124421 is a deficient number, since it is larger than the sum of its proper divisors (2480312604219).

4032121124421 is an equidigital number, since it uses as much as digits as its factorization.

4032121124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141821325 (or 141821307 counting only the distinct ones).

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

Adding to 4032121124421 its reverse (1244211212304), we get a palindrome (5276332336725).

The spelling of 4032121124421 in words is "four trillion, thirty-two billion, one hundred twenty-one million, one hundred twenty-four thousand, four hundred twenty-one".