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2122221102211 = 72223449432557
BaseRepresentation
bin11110111000011110001…
…111000010010010000011
321111212211020102010220101
4132320132033002102003
5234232302100232321
64302533535223231
7306216421506100
oct36703617022203
97455736363811
102122221102211
11749035538971
122a3373677b17
1312518095b0b2
1474a04ba7aa7
153a30ce6c791
hex1ee1e3c2483

2122221102211 has 24 divisors (see below), whose sum is σ = 2485305244800. Its totient is φ = 1806852160512.

The previous prime is 2122221102179. The next prime is 2122221102233. The reversal of 2122221102211 is 1122011222212.

It is not a de Polignac number, because 2122221102211 - 25 = 2122221102179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122221102271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4689945 + ... + 5122501.

It is an arithmetic number, because the mean of its divisors is an integer number (103554385200).

Almost surely, 22122221102211 is an apocalyptic number.

2122221102211 is a deficient number, since it is larger than the sum of its proper divisors (363084142589).

2122221102211 is a wasteful number, since it uses less digits than its factorization.

2122221102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433243 (or 433236 counting only the distinct ones).

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

Adding to 2122221102211 its reverse (1122011222212), we get a palindrome (3244232324423).

The spelling of 2122221102211 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred eleven".

Divisors: 1 7 49 223 449 1561 3143 10927 22001 100127 432557 700889 3027899 4906223 21195293 96460211 194218093 675221477 1359526651 4726550339 9516686557 43310634739 303174443173 2122221102211