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2122120121210 = 25747728381973
BaseRepresentation
bin11110111000011000001…
…101110100101101111010
321111212120012101210000022
4132320120031310231322
5234232100222334320
64302515531010442
7306214054256615
oct36703015645572
97455505353008
102122120121210
11748a935373a1
122a3345899a22
13125165a62c1b
14749d55dd17c
153a304172325
hex1ee18374b7a

2122120121210 has 16 divisors (see below), whose sum is σ = 3820327228296. Its totient is φ = 848734490688.

The previous prime is 2122120121201. The next prime is 2122120121237. The reversal of 2122120121210 is 121210212212.

It can be written as a sum of positive squares in 4 ways, for example, as 2062949072209 + 59171049001 = 1436297^2 + 243251^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14116217 + ... + 14265756.

Almost surely, 22122120121210 is an apocalyptic number.

2122120121210 is a deficient number, since it is larger than the sum of its proper divisors (1698207107086).

2122120121210 is a wasteful number, since it uses less digits than its factorization.

2122120121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28389457.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122120121210 its reverse (121210212212), we get a palindrome (2243330333422).

The spelling of 2122120121210 in words is "two trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 5 10 7477 14954 37385 74770 28381973 56763946 141909865 283819730 212212012121 424424024242 1061060060605 2122120121210