Base | Representation |
---|---|
bin | 10001100110111010111… |
… | …100000000010001010101 |
3 | 11021200021112001122111011 |
4 | 101212322330000101111 |
5 | 124311111124231401 |
6 | 2323513153012221 |
7 | 153264322110421 |
oct | 21467274002125 |
9 | 4250245048434 |
10 | 1210022102101 |
11 | 427192a277aa |
12 | 176615b54071 |
13 | 8a148a43337 |
14 | 427cb5a1b81 |
15 | 2171e9b2451 |
hex | 119baf00455 |
1210022102101 has 4 divisors (see below), whose sum is σ = 1210181553900. Its totient is φ = 1209862650304.
The previous prime is 1210022102089. The next prime is 1210022102111. The reversal of 1210022102101 is 1012012200121.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 94307339025 + 1115714763076 = 307095^2 + 1056274^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1210022102101 is a prime.
It is a super-2 number, since 2×12100221021012 (a number of 25 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 (1210022102111) 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, 79714516 + ... + 79729693.
It is an arithmetic number, because the mean of its divisors is an integer number (302545388475).
Almost surely, 21210022102101 is an apocalyptic number.
It is an amenable number.
1210022102101 is a deficient number, since it is larger than the sum of its proper divisors (159451799).
1210022102101 is an equidigital number, since it uses as much as digits as its factorization.
1210022102101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159451798.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 1210022102101 its reverse (1012012200121), we get a palindrome (2222034302222).
The spelling of 1210022102101 in words is "one trillion, two hundred ten billion, twenty-two million, one hundred two thousand, one hundred one".
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