Search a number
-
+
12202202209 = 30739746587
BaseRepresentation
bin10110101110100111…
…01101010001100001
31011111101121002122011
423113103231101201
5144442230432314
65334451312521
7611245002361
oct132723552141
934441532564
1012202202209
1151a190913a
1224465ab741
1311c60102c2
1483a8149a1
154b63b24c4
hex2d74ed461

12202202209 has 4 divisors (see below), whose sum is σ = 12241949104. Its totient is φ = 12162455316.

The previous prime is 12202202179. The next prime is 12202202231. The reversal of 12202202209 is 90220220221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90220220221 = 147377612173.

It is a cyclic number.

It is not a de Polignac number, because 12202202209 - 211 = 12202200161 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 12202202209.

It is not an unprimeable number, because it can be changed into a prime (12202202269) 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, 19872987 + ... + 19873600.

It is an arithmetic number, because the mean of its divisors is an integer number (3060487276).

Almost surely, 212202202209 is an apocalyptic number.

It is an amenable number.

12202202209 is a deficient number, since it is larger than the sum of its proper divisors (39746895).

12202202209 is an equidigital number, since it uses as much as digits as its factorization.

12202202209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39746894.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 12202202209 in words is "twelve billion, two hundred two million, two hundred two thousand, two hundred nine".

Divisors: 1 307 39746587 12202202209