Base | Representation |
---|---|
bin | 10100100110100001… |
… | …101011110111001101 |
3 | 2010002122221110010111 |
4 | 110212201223313031 |
5 | 330301011413401 |
6 | 14055022040021 |
7 | 1412120051446 |
oct | 244641536715 |
9 | 63078843114 |
10 | 22121201101 |
11 | 942192888a |
12 | 4354419011 |
13 | 2116ca980c |
14 | 10dbcd02cd |
15 | 8970bee51 |
hex | 52686bdcd |
22121201101 has 8 divisors (see below), whose sum is σ = 22519515008. Its totient is φ = 21724038000.
The previous prime is 22121201099. The next prime is 22121201107. The reversal of 22121201101 is 10110212122.
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 22121201101 - 21 = 22121201099 is a prime.
It is a super-2 number, since 2×221212011012 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22121201107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248865 + ... + 325846.
It is an arithmetic number, because the mean of its divisors is an integer number (2814939376).
Almost surely, 222121201101 is an apocalyptic number.
It is an amenable number.
22121201101 is a deficient number, since it is larger than the sum of its proper divisors (398313907).
22121201101 is an equidigital number, since it uses as much as digits as its factorization.
22121201101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 575403.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 22121201101 its reverse (10110212122), we get a palindrome (32231413223).
The spelling of 22121201101 in words is "twenty-two billion, one hundred twenty-one million, two hundred one thousand, one hundred one".
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