Base | Representation |
---|---|
bin | 10110101110100111… |
… | …01111001011100101 |
3 | 1011111101121111100111 |
4 | 23113103233023211 |
5 | 144442231210041 |
6 | 5334451413021 |
7 | 611245034221 |
oct | 132723571345 |
9 | 34441544314 |
10 | 12202210021 |
11 | 51a1913aa1 |
12 | 24465b4171 |
13 | 11c6013a21 |
14 | 83a817781 |
15 | 4b63b4981 |
hex | 2d74ef2e5 |
12202210021 has 8 divisors (see below), whose sum is σ = 12421337760. Its totient is φ = 11983492752.
The previous prime is 12202210019. The next prime is 12202210063. The reversal of 12202210021 is 12001220221.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12202210021 - 21 = 12202210019 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12202209983 and 12202210010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12202210081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42315 + ... + 161848.
It is an arithmetic number, because the mean of its divisors is an integer number (1552667220).
Almost surely, 212202210021 is an apocalyptic number.
It is an amenable number.
12202210021 is a deficient number, since it is larger than the sum of its proper divisors (219127739).
12202210021 is a wasteful number, since it uses less digits than its factorization.
12202210021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 205235.
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 12202210021 its reverse (12001220221), we get a palindrome (24203430242).
The spelling of 12202210021 in words is "twelve billion, two hundred two million, two hundred ten thousand, twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •