| Base | Representation |
|---|---|
| bin | 110000000001100001100101… |
| … | …010010001000111010100100 |
| 3 | 1000200211120112111201021112212 |
| 4 | 300001201211102020322210 |
| 5 | 210140440122304031040 |
| 6 | 2025112555435102552 |
| 7 | 62326330514442641 |
| oct | 6001414522107244 |
| 9 | 1020746474637485 |
| 10 | 211211011002020 |
| 11 | 613310a54a6227 |
| 12 | 1b8321382a1a58 |
| 13 | 90b1160cac3c3 |
| 14 | 3a2294b7b2dc8 |
| 15 | 196413a6d1d65 |
| hex | c01865488ea4 |
211211011002020 has 96 divisors (see below), whose sum is σ = 469040791919616. Its totient is φ = 79761111091200.
The previous prime is 211211011001983. The next prime is 211211011002029. The reversal of 211211011002020 is 20200110112112.
It is a super-2 number, since 2×2112110110020202 (a number of 29 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 211211011001986 and 211211011002004.
It is not an unprimeable number, because it can be changed into a prime (211211011002029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554397719 + ... + 554778561.
It is an arithmetic number, because the mean of its divisors is an integer number (4885841582496).
Almost surely, 2211211011002020 is an apocalyptic number.
211211011002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 211211011002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234520395959808).
211211011002020 is an abundant number, since it is smaller than the sum of its proper divisors (257829780917596).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211211011002020 is a wasteful number, since it uses less digits than its factorization.
211211011002020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 402741 (or 402739 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 211211011002020 its reverse (20200110112112), we get a palindrome (231411121114132).
The spelling of 211211011002020 in words is "two hundred eleven trillion, two hundred eleven billion, eleven million, two thousand, twenty".
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