1421214020142 has 96 divisors (see below), whose sum is σ = 3340323559584. Its totient is φ = 401909760000.

The previous prime is 1421214020123. The next prime is 1421214020147. The reversal of 1421214020142 is 2410204121241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421214020147) 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 47 ways as a sum of consecutive naturals, for example, 124738798 + ... + 124750190.

It is an arithmetic number, because the mean of its divisors is an integer number (34795037079).

Almost surely, 2^{1421214020142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421214020142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670161779792).

1421214020142 is an abundant number, since it is smaller than the sum of its proper divisors (1919109539442).

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

1421214020142 is a wasteful number, since it uses less digits than its factorization.

1421214020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714 (or 15707 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1421214020142 its reverse (2410204121241), we get a palindrome (3831418141383).

The spelling of 1421214020142 in words is "one trillion, four hundred twenty-one billion, two hundred fourteen million, twenty thousand, one hundred forty-two".