Base | Representation |
---|---|
bin | 110111111110110101… |
… | …1101101101110000101 |
3 | 102111022100112112201012 |
4 | 1233331223231232011 |
5 | 3432202333241401 |
6 | 131121200212005 |
7 | 11454111641123 |
oct | 1577553555605 |
9 | 374270475635 |
10 | 120220212101 |
11 | 46a921a27a0 |
12 | 1b37160a005 |
13 | b44b9ca4a2 |
14 | 5b666aa913 |
15 | 31d94a38bb |
hex | 1bfdaedb85 |
120220212101 has 4 divisors (see below), whose sum is σ = 131149322304. Its totient is φ = 109291101900.
The previous prime is 120220212097. The next prime is 120220212103. The reversal of 120220212101 is 101212022021.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101212022021 = 11 ⋅9201092911.
It is a cyclic number.
It is not a de Polignac number, because 120220212101 - 22 = 120220212097 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120220212103) 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, 5464555085 + ... + 5464555106.
It is an arithmetic number, because the mean of its divisors is an integer number (32787330576).
Almost surely, 2120220212101 is an apocalyptic number.
120220212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
120220212101 is a deficient number, since it is larger than the sum of its proper divisors (10929110203).
120220212101 is a wasteful number, since it uses less digits than its factorization.
120220212101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10929110202.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 120220212101 its reverse (101212022021), we get a palindrome (221432234122).
The spelling of 120220212101 in words is "one hundred twenty billion, two hundred twenty million, two hundred twelve thousand, one hundred one".
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