Search a number
12203222121223 = 71743317445889
BaseRepresentation
bin1011000110010100100010…
…1110000011101100000111
31121012121122112100111122221
42301211020232003230013
53044414144330334343
641542025521233211
72366440135361650
oct261451056035407
947177575314587
1012203222121223
1139853a2828401
121451096492807
136a69b3424363
143028d39a6527
151626791b25ed
hexb1948b83b07

12203222121223 has 4 divisors (see below), whose sum is σ = 13946539567120. Its totient is φ = 10459904675328.

The previous prime is 12203222121217. The next prime is 12203222121313. The reversal of 12203222121223 is 32212122230221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12203222121223 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 (12203222125223) 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, 871658722938 + ... + 871658722951.

It is an arithmetic number, because the mean of its divisors is an integer number (3486634891780).

Almost surely, 212203222121223 is an apocalyptic number.

12203222121223 is a deficient number, since it is larger than the sum of its proper divisors (1743317445897).

12203222121223 is an equidigital number, since it uses as much as digits as its factorization.

12203222121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743317445896.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12203222121223 its reverse (32212122230221), we get a palindrome (44415344351444).

The spelling of 12203222121223 in words is "twelve trillion, two hundred three billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 7 1743317445889 12203222121223