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122012200212 = 22371976448747
BaseRepresentation
bin111000110100001111…
…1100110110100010100
3102122221020110222021020
41301220133212310110
53444340110401322
6132015052521140
711546401406220
oct1615037466424
9378836428236
10122012200212
1147821784a01
121b7917801b0
13b676043896
145c96699780
15329197805c
hex1c687e6d14

122012200212 has 48 divisors (see below), whose sum is σ = 342490391040. Its totient is φ = 33025858272.

The previous prime is 122012200151. The next prime is 122012200217. The reversal of 122012200212 is 212002210221.

It is a junction number, because it is equal to n+sod(n) for n = 122012200191 and 122012200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012200217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38222778 + ... + 38225969.

It is an arithmetic number, because the mean of its divisors is an integer number (7135216480).

Almost surely, 2122012200212 is an apocalyptic number.

122012200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012200212 is an abundant number, since it is smaller than the sum of its proper divisors (220478190828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122012200212 is a wasteful number, since it uses less digits than its factorization.

122012200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76448780 (or 76448778 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122012200212 its reverse (212002210221), we get a palindrome (334014410433).

The spelling of 122012200212 in words is "one hundred twenty-two billion, twelve million, two hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 76448747 152897494 229346241 305794988 458692482 535141229 917384964 1070282458 1452526193 1605423687 2140564916 2905052386 3210847374 4357578579 5810104772 6421694748 8715157158 10167683351 17430314316 20335366702 30503050053 40670733404 61006100106 122012200212