| Base | Representation |
|---|---|
| bin | 1001100011110100111001… |
| … | …11001010010011100110100 |
| 3 | 2202102200222102021001201120 |
| 4 | 10301322130321102130310 |
| 5 | 10223411432231210400 |
| 6 | 112413244423023540 |
| 7 | 4266542524320300 |
| oct | 461723471223464 |
| 9 | 82380872231646 |
| 10 | 21022202210100 |
| 11 | 6775514110aa3 |
| 12 | 24362b0b9abb0 |
| 13 | b965012807b0 |
| 14 | 5296a1240d00 |
| 15 | 266c8086eca0 |
| hex | 131e9ce52734 |
21022202210100 has 1728 divisors, whose sum is σ = 80152573406976. Its totient is φ = 4212520058880.
The previous prime is 21022202210077. The next prime is 21022202210101. The reversal of 21022202210100 is 101220222012.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 21022202210100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21022202210101) 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 575 ways as a sum of consecutive naturals, for example, 66316095142 + ... + 66316095458.
It is an arithmetic number, because the mean of its divisors is an integer number (46384591092).
Almost surely, 221022202210100 is an apocalyptic number.
21022202210100 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 21022202210100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40076286703488).
21022202210100 is an abundant number, since it is smaller than the sum of its proper divisors (59130371196876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21022202210100 is a wasteful number, since it uses less digits than its factorization.
21022202210100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 594 (or 580 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 21022202210100 its reverse (101220222012), we get a palindrome (21123422432112).
The spelling of 21022202210100 in words is "twenty-one trillion, twenty-two billion, two hundred two million, two hundred ten thousand, one hundred".
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