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122012310222 = 2321119375983179
BaseRepresentation
bin111000110100010000…
…0000001101011001110
3102122221020200120011200
41301220200001223032
53444340122411342
6132015055130330
711546402345025
oct1615040015316
9378836616150
10122012310222
114782184a620
121b7918139a6
13b67608198a
145c966c78bc
15329199a94c
hex1c68801ace

122012310222 has 384 divisors, whose sum is σ = 322672896000. Its totient is φ = 32914563840.

The previous prime is 122012310209. The next prime is 122012310229. The reversal of 122012310222 is 222013210221.

122012310222 is a `hidden beast` number, since 12 + 201 + 231 + 0 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122012310195 and 122012310204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012310229) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 681632929 + ... + 681633107.

It is an arithmetic number, because the mean of its divisors is an integer number (840294000).

Almost surely, 2122012310222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122012310222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161336448000).

122012310222 is an abundant number, since it is smaller than the sum of its proper divisors (200660585778).

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

122012310222 is a wasteful number, since it uses less digits than its factorization.

122012310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122012310222 its reverse (222013210221), we get a palindrome (344025520443).

It can be divided in two parts, 122012 and 310222, that added together give a palindrome (432234).

The spelling of 122012310222 in words is "one hundred twenty-two billion, twelve million, three hundred ten thousand, two hundred twenty-two".