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12001201021982 = 2181211157120801
BaseRepresentation
bin1010111010100011111101…
…0100101110010000011110
31120111022012100000100020002
42232220333110232100132
53033111424430200412
641305135312054302
72346025643355224
oct256507724562036
946438170010202
1012001201021982
113907754119457
121419ab5b34392
13690929481293
142d6c0b2d6b14
1515c2a35addc2
hexaea3f52e41e

12001201021982 has 16 divisors (see below), whose sum is σ = 18187047073104. Its totient is φ = 5939166240000.

The previous prime is 12001201021897. The next prime is 12001201022033. The reversal of 12001201021982 is 28912010210021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78484019 + ... + 78636782.

It is an arithmetic number, because the mean of its divisors is an integer number (1136690442069).

Almost surely, 212001201021982 is an apocalyptic number.

12001201021982 is a deficient number, since it is larger than the sum of its proper divisors (6185846051122).

12001201021982 is a wasteful number, since it uses less digits than its factorization.

12001201021982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157121195.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 12001201021982 in words is "twelve trillion, one billion, two hundred one million, twenty-one thousand, nine hundred eighty-two".

Divisors: 1 2 181 211 362 422 38191 76382 157120801 314241602 28438864981 33152489011 56877729962 66304978022 6000600510991 12001201021982