1116601421 has 12 divisors (see below), whose sum is σ = 1238598900. Its totient is φ = 1005563520.

The previous prime is 1116601417. The next prime is 1116601433. The reversal of 1116601421 is 1241066111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 724363396 + 392238025 = 26914^2 + 19805^2 .

It is not a de Polignac number, because 1116601421 - 2² = 1116601417 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 (1116601621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73646 + ... + 87503.

It is an arithmetic number, because the mean of its divisors is an integer number (103216575).

Almost surely, 2^1116601421 is an apocalyptic number.

It is an amenable number.

1116601421 is a deficient number, since it is larger than the sum of its proper divisors (121997479).

1116601421 is a wasteful number, since it uses less digits than its factorization.

1116601421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161216 (or 161203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1116601421 is about 33415.5864979204. The cubic root of 1116601421 is about 1037.4473333889.

Adding to 1116601421 its reverse (1241066111), we get a palindrome (2357667532).

The spelling of 1116601421 in words is "one billion, one hundred sixteen million, six hundred one thousand, four hundred twenty-one".