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12222230201 = 53230608117
BaseRepresentation
bin10110110001000000…
…00110111010111001
31011112210021121212122
423120200012322321
5200012342331301
65340444451025
7611610146126
oct133040067271
934483247778
1012222230201
1152021484a5
122451249a75
1311ca20339c
1483d34974d
154b801b81b
hex2d8806eb9

12222230201 has 4 divisors (see below), whose sum is σ = 12452838372. Its totient is φ = 11991622032.

The previous prime is 12222230179. The next prime is 12222230213. The reversal of 12222230201 is 10203222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10203222221 = 29351835249.

It can be written as a sum of positive squares in 2 ways, for example, as 9754525225 + 2467704976 = 98765^2 + 49676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12222230201 is a prime.

It is a super-2 number, since 2×122222302012 (a number of 21 digits) contains 22 as substring.

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 12222230201.

It is not an unprimeable number, because it can be changed into a prime (12222230101) 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, 115304006 + ... + 115304111.

It is an arithmetic number, because the mean of its divisors is an integer number (3113209593).

Almost surely, 212222230201 is an apocalyptic number.

It is an amenable number.

12222230201 is a deficient number, since it is larger than the sum of its proper divisors (230608171).

12222230201 is an equidigital number, since it uses as much as digits as its factorization.

12222230201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230608170.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12222230201 its reverse (10203222221), we get a palindrome (22425452422).

The spelling of 12222230201 in words is "twelve billion, two hundred twenty-two million, two hundred thirty thousand, two hundred one".

Divisors: 1 53 230608117 12222230201