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120022011 = 3213335779
BaseRepresentation
bin1110010011101…
…10001111111011
322100211202020200
413021312033323
5221211201021
615524253243
72655112254
oct711661773
9270752220
10120022011
116182734a
1234241223
131bb33c55
1411d23b2b
15a80c126
hex72763fb

120022011 has 6 divisors (see below), whose sum is σ = 173365140. Its totient is φ = 80014668.

The previous prime is 120022003. The next prime is 120022013. The reversal of 120022011 is 110220021.

It is not a de Polignac number, because 120022011 - 23 = 120022003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13335779 = 120022011 / (1 + 2 + 0 + 0 + 2 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 120021984 and 120022002.

It is not an unprimeable number, because it can be changed into a prime (120022013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6667881 + ... + 6667898.

It is an arithmetic number, because the mean of its divisors is an integer number (28894190).

Almost surely, 2120022011 is an apocalyptic number.

120022011 is a deficient number, since it is larger than the sum of its proper divisors (53343129).

120022011 is a wasteful number, since it uses less digits than its factorization.

120022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13335785 (or 13335782 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 120022011 is about 10955.4557641387. The cubic root of 120022011 is about 493.2725706857.

Adding to 120022011 its reverse (110220021), we get a palindrome (230242032).

The spelling of 120022011 in words is "one hundred twenty million, twenty-two thousand, eleven".

Divisors: 1 3 9 13335779 40007337 120022011