1421144411199 has 4 divisors (see below), whose sum is σ = 1894859214936. Its totient is φ = 947429607464.

The previous prime is 1421144411123. The next prime is 1421144411227. The reversal of 1421144411199 is 9911144411241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1421144411199 - 2⁸ = 1421144410943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421144411199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421144411699) 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, 236857401864 + ... + 236857401869.

It is an arithmetic number, because the mean of its divisors is an integer number (473714803734).

Almost surely, 2^{1421144411199} is an apocalyptic number.

1421144411199 is a deficient number, since it is larger than the sum of its proper divisors (473714803737).

1421144411199 is an equidigital number, since it uses as much as digits as its factorization.

1421144411199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473714803736.

The product of its digits is 41472, while the sum is 42.

Adding to 1421144411199 its sum of digits (42), we get a palindrome (1421144411241).

The spelling of 1421144411199 in words is "one trillion, four hundred twenty-one billion, one hundred forty-four million, four hundred eleven thousand, one hundred ninety-nine".