402241124421 has 64 divisors (see below), whose sum is σ = 636778195200. Its totient is φ = 250069248000.

The previous prime is 402241124407. The next prime is 402241124431. The reversal of 402241124421 is 124421142204.

402241124421 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 411 + 244 + 2 + 1 = 666.

It is not a de Polignac number, because 402241124421 - 2⁹ = 402241123909 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 (402241124431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33234271 + ... + 33246371.

It is an arithmetic number, because the mean of its divisors is an integer number (9949659300).

Almost surely, 2^402241124421 is an apocalyptic number.

It is an amenable number.

402241124421 is a deficient number, since it is larger than the sum of its proper divisors (234537070779).

402241124421 is a wasteful number, since it uses less digits than its factorization.

402241124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12787 (or 12781 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 402241124421 its reverse (124421142204), we get a palindrome (526662266625).

The spelling of 402241124421 in words is "four hundred two billion, two hundred forty-one million, one hundred twenty-four thousand, four hundred twenty-one".