1421144421101 has 8 divisors (see below), whose sum is σ = 1504756760760. Its totient is φ = 1337533815808.

The previous prime is 1421144421083. The next prime is 1421144421127. The reversal of 1421144421101 is 1011244411241.

It can be written as a sum of positive squares in 4 ways, for example, as 852215154025 + 568929267076 = 923155^2 + 754274^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421144421101 - 2¹⁰ = 1421144420077 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 (1421144426101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499765 + ... + 2256453.

It is an arithmetic number, because the mean of its divisors is an integer number (188094595095).

Almost surely, 2^{1421144421101} is an apocalyptic number.

It is an amenable number.

1421144421101 is a deficient number, since it is larger than the sum of its proper divisors (83612339659).

1421144421101 is a wasteful number, since it uses less digits than its factorization.

1421144421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867183.

The product of its (nonzero) digits is 1024, while the sum is 26.

Adding to 1421144421101 its reverse (1011244411241), we get a palindrome (2432388832342).

The spelling of 1421144421101 in words is "one trillion, four hundred twenty-one billion, one hundred forty-four million, four hundred twenty-one thousand, one hundred one".