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123210222122 = 21321122459027
BaseRepresentation
bin111001010111111100…
…1101100101000101010
3102210000201202210101002
41302233321230220222
54004313304101442
6132334010355002
711621156415401
oct1625771545052
9383021683332
10123210222122
1148286a5a559
121ba66a2ba62
13b8072c48a0
145d6b832638
153311c22732
hex1cafe6ca2a

123210222122 has 16 divisors (see below), whose sum is σ = 199975185312. Its totient is φ = 56596745520.

The previous prime is 123210222103. The next prime is 123210222133. The reversal of 123210222122 is 221222012321.

It is a junction number, because it is equal to n+sod(n) for n = 123210222094 and 123210222103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11224028 + ... + 11234999.

It is an arithmetic number, because the mean of its divisors is an integer number (12498449082).

Almost surely, 2123210222122 is an apocalyptic number.

123210222122 is a deficient number, since it is larger than the sum of its proper divisors (76764963190).

123210222122 is a wasteful number, since it uses less digits than its factorization.

123210222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22459253.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123210222122 its reverse (221222012321), we get a palindrome (344432234443).

The spelling of 123210222122 in words is "one hundred twenty-three billion, two hundred ten million, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 13 26 211 422 2743 5486 22459027 44918054 291967351 583934702 4738854697 9477709394 61605111061 123210222122