1421443140122 has 4 divisors (see below), whose sum is σ = 2132164710186. Its totient is φ = 710721570060.

The previous prime is 1421443140119. The next prime is 1421443140133. The reversal of 1421443140122 is 2210413441241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1212357347041 + 209085793081 = 1101071^2 + 457259^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355360785029 + ... + 355360785032.

Almost surely, 2^{1421443140122} is an apocalyptic number.

1421443140122 is a deficient number, since it is larger than the sum of its proper divisors (710721570064).

1421443140122 is an equidigital number, since it uses as much as digits as its factorization.

1421443140122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710721570063.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1421443140122 its reverse (2210413441241), we get a palindrome (3631856581363).

The spelling of 1421443140122 in words is "one trillion, four hundred twenty-one billion, four hundred forty-three million, one hundred forty thousand, one hundred twenty-two".