1421421133420 has 24 divisors (see below), whose sum is σ = 2985153643584. Its totient is φ = 568536212736.

The previous prime is 1421421133417. The next prime is 1421421133421. The reversal of 1421421133420 is 243311241241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1421421133421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1651924 + ... + 2360443.

It is an arithmetic number, because the mean of its divisors is an integer number (124381401816).

Almost surely, 2^{1421421133420} is an apocalyptic number.

1421421133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421421133420 is an abundant number, since it is smaller than the sum of its proper divisors (1563732510164).

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

1421421133420 is a wasteful number, since it uses less digits than its factorization.

1421421133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030089 (or 4030087 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1421421133420 its reverse (243311241241), we get a palindrome (1664732374661).

The spelling of 1421421133420 in words is "one trillion, four hundred twenty-one billion, four hundred twenty-one million, one hundred thirty-three thousand, four hundred twenty".