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120222012 = 223231034229
BaseRepresentation
bin1110010101001…
…11000100111100
322101012220121010
413022213010330
5221234101022
615532435220
72656604331
oct712470474
9271186533
10120222012
1161953639
1234318b10
131bba3cb1
1411d76988
15a84b50c
hex72a713c

120222012 has 48 divisors (see below), whose sum is σ = 295626240. Its totient is φ = 37950528.

The previous prime is 120222007. The next prime is 120222013. The reversal of 120222012 is 210222021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120222013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26314 + ... + 30542.

It is an arithmetic number, because the mean of its divisors is an integer number (6158880).

Almost surely, 2120222012 is an apocalyptic number.

120222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147813120).

120222012 is an abundant number, since it is smaller than the sum of its proper divisors (175404228).

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

120222012 is a wasteful number, since it uses less digits than its factorization.

120222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120222012 is about 10964.5798825126. The cubic root of 120222012 is about 493.5464100665.

Adding to 120222012 its reverse (210222021), we get a palindrome (330444033).

Subtracting 120222012 from its reverse (210222021), we obtain a palindrome (90000009).

The spelling of 120222012 in words is "one hundred twenty million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 103 138 206 276 309 412 618 1236 2369 4229 4738 7107 8458 9476 12687 14214 16916 25374 28428 50748 97267 194534 291801 389068 435587 583602 871174 1167204 1306761 1742348 2613522 5227044 10018501 20037002 30055503 40074004 60111006 120222012