1121616601 has 16 divisors (see below), whose sum is σ = 1339582464. Its totient is φ = 919036944.

The previous prime is 1121616593. The next prime is 1121616647. The reversal of 1121616601 is 1066161211.

It is not a de Polignac number, because 1121616601 - 2³ = 1121616593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121616901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25495 + ... + 53788.

It is an arithmetic number, because the mean of its divisors is an integer number (83723904).

Almost surely, 2^1121616601 is an apocalyptic number.

It is an amenable number.

1121616601 is a deficient number, since it is larger than the sum of its proper divisors (217965863).

1121616601 is an equidigital number, since it uses as much as digits as its factorization.

1121616601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79380.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1121616601 is about 33490.5449492838. The cubic root of 1121616601 is about 1038.9982343991.

Adding to 1121616601 its reverse (1066161211), we get a palindrome (2187777812).

The spelling of 1121616601 in words is "one billion, one hundred twenty-one million, six hundred sixteen thousand, six hundred one".