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122102010111 = 31710903219587
BaseRepresentation
bin111000110110111011…
…0001101000011111111
3102200011111110210021210
41301231312031003333
54000031103310421
6132032021455503
711551541650524
oct1615566150377
9380144423253
10122102010111
1147868446464
121b7b7871593
13b68b82a133
145ca459714b
1532997b8576
hex1c6dd8d0ff

122102010111 has 16 divisors (see below), whose sum is σ = 172395903744. Its totient is φ = 76605650304.

The previous prime is 122102010101. The next prime is 122102010113. The reversal of 122102010111 is 111010201221.

It is not a de Polignac number, because 122102010111 - 225 = 122068455679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102010113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446260 + ... + 665846.

It is an arithmetic number, because the mean of its divisors is an integer number (10774743984).

Almost surely, 2122102010111 is an apocalyptic number.

122102010111 is a deficient number, since it is larger than the sum of its proper divisors (50293893633).

122102010111 is a wasteful number, since it uses less digits than its factorization.

122102010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230510.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122102010111 its reverse (111010201221), we get a palindrome (233112211332).

The spelling of 122102010111 in words is "one hundred twenty-two billion, one hundred two million, ten thousand, one hundred eleven".

Divisors: 1 3 17 51 10903 32709 185351 219587 556053 658761 3732979 11198937 2394157061 7182471183 40700670037 122102010111