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11212204301 = 12778780113
BaseRepresentation
bin10100111000100110…
…01010100100001101
31001221101201222210222
422130103022210031
5140430311014201
65052324241125
7544564110164
oct123423124415
931841658728
1011212204301
114833aa7051
12220ab401a5
131098b9591c
1478514c3db
1545950991b
hex29c4ca90d

11212204301 has 4 divisors (see below), whose sum is σ = 11220985692. Its totient is φ = 11203422912.

The previous prime is 11212204273. The next prime is 11212204309. The reversal of 11212204301 is 10340221211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10340221211 = 19544222169.

It can be written as a sum of positive squares in 2 ways, for example, as 8262628201 + 2949576100 = 90899^2 + 54310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11212204301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212204301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212204309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4388780 + ... + 4391333.

It is an arithmetic number, because the mean of its divisors is an integer number (2805246423).

Almost surely, 211212204301 is an apocalyptic number.

It is an amenable number.

11212204301 is a deficient number, since it is larger than the sum of its proper divisors (8781391).

11212204301 is an equidigital number, since it uses as much as digits as its factorization.

11212204301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781390.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11212204301 its reverse (10340221211), we get a palindrome (21552425512).

The spelling of 11212204301 in words is "eleven billion, two hundred twelve million, two hundred four thousand, three hundred one".

Divisors: 1 1277 8780113 11212204301