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2122221012211 = 29338261189307
BaseRepresentation
bin11110111000011110001…
…110101100010011110011
321111212211020020120110001
4132320132032230103303
5234232302034342321
64302533533250431
7306216420652516
oct36703616542363
97455736216401
102122221012211
11749035487293
122a3373633a17
13125180929141
1474a04b82d7d
153a30ce50c91
hex1ee1e3ac4f3

2122221012211 has 8 divisors (see below), whose sum is σ = 2129530992624. Its totient is φ = 2114911487520.

The previous prime is 2122221012209. The next prime is 2122221012229. The reversal of 2122221012211 is 1122101222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122221012211 - 21 = 2122221012209 is a prime.

It is a super-3 number, since 3×21222210122113 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122221012511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11115820 + ... + 11305126.

It is an arithmetic number, because the mean of its divisors is an integer number (266191374078).

Almost surely, 22122221012211 is an apocalyptic number.

2122221012211 is a deficient number, since it is larger than the sum of its proper divisors (7309980413).

2122221012211 is a wasteful number, since it uses less digits than its factorization.

2122221012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227861.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122221012211 its reverse (1122101222212), we get a palindrome (3244322234423).

The spelling of 2122221012211 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred eleven".

Divisors: 1 293 38261 189307 11210473 55466951 7243075127 2122221012211