| Base | Representation |
|---|---|
| bin | 11101001010100011101… |
| … | …00001000010111010100 |
| 3 | 10112210121001221111012200 |
| 4 | 32211101310020113110 |
| 5 | 112404300100001322 |
| 6 | 2044205224444500 |
| 7 | 132253654313433 |
| oct | 16452164102724 |
| 9 | 3483531844180 |
| 10 | 1002100000212 |
| 11 | 356a96364163 |
| 12 | 142269319730 |
| 13 | 7366138680c |
| 14 | 367052d311a |
| 15 | 1b100ccd8ac |
| hex | e951d085d4 |
1002100000212 has 72 divisors (see below), whose sum is σ = 2684601901800. Its totient is φ = 314090016768.
The previous prime is 1002100000211. The next prime is 1002100000243. The reversal of 1002100000212 is 2120000012001.
It can be written as a sum of positive squares in 4 ways, for example, as 36746589636 + 965353410576 = 191694^2 + 982524^2 .
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 1002100000194 and 1002100000203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1002100000211) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111637 + ... + 1420092.
It is an arithmetic number, because the mean of its divisors is an integer number (37286137525).
Almost surely, 21002100000212 is an apocalyptic number.
1002100000212 is a gapful number since it is divisible by the number (12) 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 1002100000212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342300950900).
1002100000212 is an abundant number, since it is smaller than the sum of its proper divisors (1682501901588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1002100000212 is a wasteful number, since it uses less digits than its factorization.
1002100000212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1532825 (or 1532820 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
Adding to 1002100000212 its reverse (2120000012001), we get a palindrome (3122100012213).
The spelling of 1002100000212 in words is "one trillion, two billion, one hundred million, two hundred twelve", and thus it is an aban number.
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