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12122323023220 = 2251910993171739
BaseRepresentation
bin1011000001100111001011…
…0000011111010101110100
31120220212211112102112001221
42300121302300133111310
53042103004143220340
641440530205000124
72360544315366244
oct260316260372564
946825745375057
1012122323023220
113954059355723
121439479553044
1369c18cc505b7
142dca1b667b24
151604e1ce444a
hexb0672c1f574

12122323023220 has 24 divisors (see below), whose sum is σ = 25457019588000. Its totient is φ = 4848902306592.

The previous prime is 12122323023193. The next prime is 12122323023221. The reversal of 12122323023220 is 2232032322121.

12122323023220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122323023221) 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, 2236111 + ... + 5407849.

It is an arithmetic number, because the mean of its divisors is an integer number (1060709149500).

Almost surely, 212122323023220 is an apocalyptic number.

12122323023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122323023220 is an abundant number, since it is smaller than the sum of its proper divisors (13334696564780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122323023220 is a wasteful number, since it uses less digits than its factorization.

12122323023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362847 (or 3362845 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12122323023220 its reverse (2232032322121), we get a palindrome (14354355345341).

The spelling of 12122323023220 in words is "twelve trillion, one hundred twenty-two billion, three hundred twenty-three million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 191099 382198 764396 955495 1910990 3171739 3821980 6343478 12686956 15858695 31717390 63434780 606116151161 1212232302322 2424464604644 3030580755805 6061161511610 12122323023220