1422110221421 has 4 divisors (see below), whose sum is σ = 1422244304832. Its totient is φ = 1421976138012.

The previous prime is 1422110221409. The next prime is 1422110221453. The reversal of 1422110221421 is 1241220112241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1422110221421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422110221481) 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 3 ways as a sum of consecutive naturals, for example, 67025795 + ... + 67047008.

It is an arithmetic number, because the mean of its divisors is an integer number (355561076208).

Almost surely, 2^{1422110221421} is an apocalyptic number.

It is an amenable number.

1422110221421 is a deficient number, since it is larger than the sum of its proper divisors (134083411).

1422110221421 is a wasteful number, since it uses less digits than its factorization.

1422110221421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134083410.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1422110221421 its reverse (1241220112241), we get a palindrome (2663330333662).

The spelling of 1422110221421 in words is "one trillion, four hundred twenty-two billion, one hundred ten million, two hundred twenty-one thousand, four hundred twenty-one".