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122122202212 = 2267455679859
BaseRepresentation
bin111000110111100001…
…1001110110001100100
3102200012220110122122101
41301233003032301210
54000101240432322
6132034022341444
711552205406603
oct1615703166144
9380186418571
10122122202212
114787888804a
121b80258a884
13b692a79b1a
145ca7131a3a
15329b456327
hex1c6f0cec64

122122202212 has 12 divisors (see below), whose sum is σ = 216903613360. Its totient is φ = 60149741256.

The previous prime is 122122202171. The next prime is 122122202221. The reversal of 122122202212 is 212202221221.

It is a self number, because there is not a number n which added to its sum of digits gives 122122202212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227839662 + ... + 227840197.

Almost surely, 2122122202212 is an apocalyptic number.

It is an amenable number.

122122202212 is a deficient number, since it is larger than the sum of its proper divisors (94781411148).

122122202212 is a wasteful number, since it uses less digits than its factorization.

122122202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455679930 (or 455679928 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122122202212 its reverse (212202221221), we get a palindrome (334324423433).

The spelling of 122122202212 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 67 134 268 455679859 911359718 1822719436 30530550553 61061101106 122122202212