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12020010010002 = 2332331433666667
BaseRepresentation
bin1010111011101010000001…
…1011010100010110010010
31120120002202011102221012000
42232322200123110112102
53033413440030310002
641321525534014430
72350263024210051
oct256724033242622
946502664387160
1012020010010002
113914726320555
121421685047416
136926361907a7
142d7ab334c398
1515ca049b761c
hexaeea06d4592

12020010010002 has 64 divisors (see below), whose sum is σ = 26844533688960. Its totient is φ = 3986684013312.

The previous prime is 12020010009947. The next prime is 12020010010003. The reversal of 12020010010002 is 20001001002021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12020010010003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17696673 + ... + 18363339.

It is an arithmetic number, because the mean of its divisors is an integer number (419445838890).

Almost surely, 212020010010002 is an apocalyptic number.

12020010010002 is an abundant number, since it is smaller than the sum of its proper divisors (14824523678958).

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

12020010010002 is a wasteful number, since it uses less digits than its factorization.

12020010010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668344 (or 668338 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12020010010002 its reverse (20001001002021), we get a palindrome (32021011012023).

The spelling of 12020010010002 in words is "twelve trillion, twenty billion, ten million, ten thousand, two".

Divisors: 1 2 3 6 9 18 27 54 233 466 699 1398 1433 2097 2866 4194 4299 6291 8598 12582 12897 25794 38691 77382 333889 666667 667778 1001667 1333334 2000001 2003334 3005001 4000002 6000003 6010002 9015003 12000006 18000009 18030006 36000018 155333411 310666822 466000233 932000466 955333811 1398000699 1910667622 2796001398 2866001433 4194002097 5732002866 8388004194 8598004299 17196008598 25794012897 51588025794 222592777963 445185555926 667778333889 1335556667778 2003335001667 4006670003334 6010005005001 12020010010002