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122122221101 = 2311714534297
BaseRepresentation
bin111000110111100001…
…1010011011000101101
3102200012220111121112222
41301233003103120231
54000101242033401
6132034023005125
711552205515636
oct1615703233055
9380186447488
10122122221101
11478788a0261
121b8025997a5
13b692a855ba
145ca713888d
15329b45bc1b
hex1c6f0d362d

122122221101 has 8 divisors (see below), whose sum is σ = 127540734144. Its totient is φ = 116712779040.

The previous prime is 122122221073. The next prime is 122122221121. The reversal of 122122221101 is 101122221221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122122221101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122122221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122221121) 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, 2240216 + ... + 2294081.

It is an arithmetic number, because the mean of its divisors is an integer number (15942591768).

Almost surely, 2122122221101 is an apocalyptic number.

It is an amenable number.

122122221101 is a deficient number, since it is larger than the sum of its proper divisors (5418513043).

122122221101 is a wasteful number, since it uses less digits than its factorization.

122122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535491.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122122221101 its reverse (101122221221), we get a palindrome (223244442322).

The spelling of 122122221101 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".

Divisors: 1 23 1171 26933 4534297 104288831 5309661787 122122221101