| Base | Representation |
|---|---|
| bin | 11101001000111011000… |
| … | …11000100100100111110 |
| 3 | 10112201022221221000010100 |
| 4 | 32210131203010210332 |
| 5 | 112401001104104042 |
| 6 | 2043542222021530 |
| 7 | 132223146020136 |
| oct | 16443543044476 |
| 9 | 3481287830110 |
| 10 | 1001223113022 |
| 11 | 356686388900 |
| 12 | 1420637178a6 |
| 13 | 735517c3362 |
| 14 | 36660a71ac6 |
| 15 | 1b09dd1a24c |
| hex | e91d8c493e |
1001223113022 has 144 divisors (see below), whose sum is σ = 2439037613376. Its totient is φ = 296476329600.
The previous prime is 1001223113017. The next prime is 1001223113027. The reversal of 1001223113022 is 2203113221001.
1001223113022 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (1001223113017) and next prime (1001223113027).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1001223112986 and 1001223113004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1001223113027) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67656528 + ... + 67671324.
It is an arithmetic number, because the mean of its divisors is an integer number (16937761204).
Almost surely, 21001223113022 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1001223113022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219518806688).
1001223113022 is an abundant number, since it is smaller than the sum of its proper divisors (1437814500354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1001223113022 is a wasteful number, since it uses less digits than its factorization.
1001223113022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15535 (or 15521 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 1001223113022 its reverse (2203113221001), we get a palindrome (3204336334023).
The spelling of 1001223113022 in words is "one trillion, one billion, two hundred twenty-three million, one hundred thirteen thousand, twenty-two".
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