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2012120001222 = 2323293301152311
BaseRepresentation
bin11101010001111011101…
…100101010101011000110
321010100122002202201001020
4131101323230222223012
5230431310210014342
64140204414412010
7265241131546422
oct35217354525306
97110562681036
102012120001222
11706376315121
12285b66b01006
13117985523526
146d55c3c7b82
15375170540ec
hex1d47bb2aac6

2012120001222 has 64 divisors (see below), whose sum is σ = 4345351695360. Its totient is φ = 619231536000.

The previous prime is 2012120001179. The next prime is 2012120001223. The reversal of 2012120001222 is 2221000212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012120001223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13134447 + ... + 13286757.

It is an arithmetic number, because the mean of its divisors is an integer number (67896120240).

Almost surely, 22012120001222 is an apocalyptic number.

2012120001222 is an abundant number, since it is smaller than the sum of its proper divisors (2333231694138).

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

2012120001222 is a wasteful number, since it uses less digits than its factorization.

2012120001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155669.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2012120001222 its reverse (2221000212102), we get a palindrome (4233120213324).

The spelling of 2012120001222 in words is "two trillion, twelve billion, one hundred twenty million, one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 23 29 46 58 69 87 138 174 667 1334 2001 3301 4002 6602 9903 19806 75923 95729 151846 152311 191458 227769 287187 304622 455538 456933 574374 913866 2201767 3503153 4403534 4417019 6605301 7006306 8834038 10509459 13210602 13251057 21018918 26502114 101591437 203182874 304774311 502778611 609548622 1005557222 1508335833 3016671666 11563908053 14580579719 23127816106 29161159438 34691724159 43741739157 69383448318 87483478314 335353333537 670706667074 1006060000611 2012120001222