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122230222121 = 723180467559
BaseRepresentation
bin111000111010101111…
…1010010110100101001
3102200111102201122002202
41301311133102310221
54000311414101441
6132052441505545
711554656513500
oct1616537226451
9380442648082
10122230222121
1147923856aa7
121b8327a22b5
13b6ac26ab27
145cb760d837
1532a5b9219b
hex1c757d2d29

122230222121 has 12 divisors (see below), whose sum is σ = 146772829440. Its totient is φ = 101389123080.

The previous prime is 122230222111. The next prime is 122230222193. The reversal of 122230222121 is 121222032221.

It is not a de Polignac number, because 122230222121 - 222 = 122226027817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122230222093 and 122230222102.

It is not an unprimeable number, because it can be changed into a prime (122230222111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40232261 + ... + 40235298.

It is an arithmetic number, because the mean of its divisors is an integer number (12231069120).

Almost surely, 2122230222121 is an apocalyptic number.

It is an amenable number.

122230222121 is a deficient number, since it is larger than the sum of its proper divisors (24542607319).

122230222121 is an equidigital number, since it uses as much as digits as its factorization.

122230222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80467604 (or 80467597 counting only the distinct ones).

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

Adding to 122230222121 its reverse (121222032221), we get a palindrome (243452254342).

The spelling of 122230222121 in words is "one hundred twenty-two billion, two hundred thirty million, two hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 31 49 217 1519 80467559 563272913 2494494329 3942910391 17461460303 122230222121