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2122210120 = 235263201731
BaseRepresentation
bin111111001111110…
…0101101101001000
312110220022102222211
41332133211231020
513321241210440
6550330154504
7103406326342
oct17637455510
95426272884
102122210120
11999a28968
124b2882a34
1327a896244
14161bcc292
15c64a2eea
hex7e7e5b48

2122210120 has 32 divisors (see below), whose sum is σ = 4793152320. Its totient is φ = 845652160.

The previous prime is 2122210109. The next prime is 2122210157. The reversal of 2122210120 is 210122212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122210120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90346 + ... + 111385.

It is an arithmetic number, because the mean of its divisors is an integer number (149786010).

Almost surely, 22122210120 is an apocalyptic number.

2122210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122210120 is an abundant number, since it is smaller than the sum of its proper divisors (2670942200).

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

2122210120 is a wasteful number, since it uses less digits than its factorization.

2122210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202005 (or 202001 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2122210120 is about 46067.4518505202. The cubic root of 2122210120 is about 1285.0779162129.

Adding to 2122210120 its reverse (210122212), we get a palindrome (2332332332).

The spelling of 2122210120 in words is "two billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 263 526 1052 1315 2104 2630 5260 10520 201731 403462 806924 1008655 1613848 2017310 4034620 8069240 53055253 106110506 212221012 265276265 424442024 530552530 1061105060 2122210120