421440122130040 has 32 divisors (see below), whose sum is σ = 1021181834393280. Its totient is φ = 155608660478592.

The previous prime is 421440122129933. The next prime is 421440122130127. The reversal of 421440122130040 is 40031221044124.

It is a super-2 number, since 2×421440122130040² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421440122129990 and 421440122130008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405230886144 + ... + 405230887183.

It is an arithmetic number, because the mean of its divisors is an integer number (31911932324790).

Almost surely, 2^{421440122130040} is an apocalyptic number.

421440122130040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421440122130040 is an abundant number, since it is smaller than the sum of its proper divisors (599741712263240).

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

421440122130040 is a wasteful number, since it uses less digits than its factorization.

421440122130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810461773351 (or 810461773347 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 421440122130040 its reverse (40031221044124), we get a palindrome (461471343174164).

The spelling of 421440122130040 in words is "four hundred twenty-one trillion, four hundred forty billion, one hundred twenty-two million, one hundred thirty thousand, forty".