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120221132 = 22191581857
BaseRepresentation
bin1110010101001…
…10110111001100
322101012212101112
413022212313030
5221234034012
615532431152
72656601633
oct712466714
9271185345
10120221132
1161952a09
12343184b8
131bba3785
1411d7651a
15a84b122
hex72a6dcc

120221132 has 12 divisors (see below), whose sum is σ = 221460120. Its totient is φ = 56946816.

The previous prime is 120221117. The next prime is 120221137. The reversal of 120221132 is 231122021.

It is a happy number.

It is a super-2 number, since 2×1202211322 = 28906241158722848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120221137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790853 + ... + 791004.

It is an arithmetic number, because the mean of its divisors is an integer number (18455010).

Almost surely, 2120221132 is an apocalyptic number.

It is an amenable number.

120221132 is a deficient number, since it is larger than the sum of its proper divisors (101238988).

120221132 is a wasteful number, since it uses less digits than its factorization.

120221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581880 (or 1581878 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 120221132 is about 10964.5397532227. The cubic root of 120221132 is about 493.5452058447.

Adding to 120221132 its reverse (231122021), we get a palindrome (351343153).

The spelling of 120221132 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 19 38 76 1581857 3163714 6327428 30055283 60110566 120221132