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120222011 = 7131777713
BaseRepresentation
bin1110010101001…
…11000100111011
322101012220121002
413022213010323
5221234101021
615532435215
72656604330
oct712470473
9271186532
10120222011
1161953638
1234318b0b
131bba3cb0
1411d76987
15a84b50b
hex72a713b

120222011 has 16 divisors (see below), whose sum is σ = 156671424. Its totient is φ = 89524224.

The previous prime is 120222007. The next prime is 120222013. The reversal of 120222011 is 110222021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120222011 - 22 = 120222007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120221983 and 120222001.

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, 37310 + ... + 40403.

It is an arithmetic number, because the mean of its divisors is an integer number (9791964).

Almost surely, 2120222011 is an apocalyptic number.

120222011 is a deficient number, since it is larger than the sum of its proper divisors (36449413).

120222011 is a wasteful number, since it uses less digits than its factorization.

120222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77750.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 120222011 is about 10964.5798369112. The cubic root of 120222011 is about 493.5464086981.

Adding to 120222011 its reverse (110222021), we get a palindrome (230444032).

The spelling of 120222011 in words is "one hundred twenty million, two hundred twenty-two thousand, eleven".

Divisors: 1 7 13 17 91 119 221 1547 77713 543991 1010269 1321121 7071883 9247847 17174573 120222011