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12223223012021 = 77972190934399
BaseRepresentation
bin1011000111011111000011…
…0111011001101010110101
31121021112021102120000212012
42301313300313121222311
53100231130042341041
641555134321534005
72401045601215640
oct261676067315265
947245242500765
1012223223012021
11399292680571a
121454b387a4305
136a8850051598
14303870040a57
15162e4a0573eb
hexb1df0dd9ab5

12223223012021 has 8 divisors (see below), whose sum is σ = 13986925209600. Its totient is φ = 10463902684848.

The previous prime is 12223223011969. The next prime is 12223223012047. The reversal of 12223223012021 is 12021032232221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12223223012021 - 26 = 12223223011957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223223012071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095461621 + ... + 1095472778.

It is an arithmetic number, because the mean of its divisors is an integer number (1748365651200).

Almost surely, 212223223012021 is an apocalyptic number.

It is an amenable number.

12223223012021 is a deficient number, since it is larger than the sum of its proper divisors (1763702197579).

12223223012021 is an equidigital number, since it uses as much as digits as its factorization.

12223223012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190935203.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12223223012021 its reverse (12021032232221), we get a palindrome (24244255244242).

The spelling of 12223223012021 in words is "twelve trillion, two hundred twenty-three billion, two hundred twenty-three million, twelve thousand, twenty-one".

Divisors: 1 7 797 5579 2190934399 15336540793 1746174716003 12223223012021