Base | Representation |
---|---|
bin | 10001011111101001010… |
… | …111011001110101000101 |
3 | 11020221010011021201201220 |
4 | 101133221113121311011 |
5 | 124144112020231041 |
6 | 2320142124110553 |
7 | 152566624521426 |
oct | 21375127316505 |
9 | 4227104251656 |
10 | 1202211102021 |
11 | 423944909836 |
12 | 174bb6095459 |
13 | 894a27056b7 |
14 | 4228a05564d |
15 | 21413d9bd66 |
hex | 117e95d9d45 |
1202211102021 has 16 divisors (see below), whose sum is σ = 1654686302208. Its totient is φ = 775605927600.
The previous prime is 1202211102019. The next prime is 1202211102031. The reversal of 1202211102021 is 1202011122021.
It is not a de Polignac number, because 1202211102021 - 21 = 1202211102019 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1202211102011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8009856 + ... + 8158566.
It is an arithmetic number, because the mean of its divisors is an integer number (103417893888).
Almost surely, 21202211102021 is an apocalyptic number.
It is an amenable number.
1202211102021 is a deficient number, since it is larger than the sum of its proper divisors (452475200187).
1202211102021 is a wasteful number, since it uses less digits than its factorization.
1202211102021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 235672.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 1202211102021 its reverse (1202011122021), we get a palindrome (2404222224042).
The spelling of 1202211102021 in words is "one trillion, two hundred two billion, two hundred eleven million, one hundred two thousand, twenty-one".
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