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120900111212 = 22191590790937
BaseRepresentation
bin111000010011000110…
…1010100101101101100
3102120001201212222221202
41300212031110231230
53440100412024322
6131312444545032
711510005663226
oct1604615245554
9376051788852
10120900111212
1147300a62a91
121b521252178
13b52981c55a
145bccad1416
153229005292
hex1c26354b6c

120900111212 has 12 divisors (see below), whose sum is σ = 222710731320. Its totient is φ = 57268473696.

The previous prime is 120900111209. The next prime is 120900111217. The reversal of 120900111212 is 212111009021.

It is not an unprimeable number, because it can be changed into a prime (120900111217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795395393 + ... + 795395544.

It is an arithmetic number, because the mean of its divisors is an integer number (18559227610).

Almost surely, 2120900111212 is an apocalyptic number.

It is an amenable number.

120900111212 is a deficient number, since it is larger than the sum of its proper divisors (101810620108).

120900111212 is a wasteful number, since it uses less digits than its factorization.

120900111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590790960 (or 1590790958 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120900111212 in words is "one hundred twenty billion, nine hundred million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 1590790937 3181581874 6363163748 30225027803 60450055606 120900111212